| 不必要 | bù bì yào | needless / unnecessary |   |
| 忽必烈 | Hū bì liè | Khubilai Khan (1215-1294), grandson of Genghis Khan 成吉思汗, first Yuan dynasty emperor, reigned 1260-1294 | |
| 董必武 | Dǒng Bì wǔ | Dong Biwu (1886-1975), one of the founders of the Chinese communist party | |
| 非必需 | fēi bì xū | inessential | |
| 非必要 | fēi bì yào | inessential / unnecessary | |
| 势在必行 | shì zài bì xíng | circumstances require action (idiom) / absolutely necessary / imperative | |
| 有求必应 | yǒu qiú bì yìng | to grant whatever is asked for / to accede to every plea | |
| 事必躬亲 | shì bì gōng qīn | to attend to everything personally | |
| 分秒必争 | fēn miǎo bì zhēng | seize every minute and second (idiom) / not a minute to lose / every moment counts | |
| 没有必要 | méi yǒu bì yào | there is no need to (do sth) | |
| 锱铢必较 | zī zhū bì jiào | to haggle over every cent (idiom) | |
| 哀兵必胜 | āi bīng bì shèng | an army burning with righteous indignation is bound to win (idiom) | |
| 骄兵必败 | jiāo bīng bì bài | lit. an arrogant army is bound to lose (idiom) / fig. pride goes before a fall | |
| 物极必反 | wù jí bì fǎn | when things reach an extreme, they can only move in the opposite direction (idiom) | |
| 言多必失 | yán duō bì shī | if you say too much, you're bound to slip up at some point (idiom) | |
| 大可不必 | dà kě bù bì | need not / unnecessary | |
| 骄者必败 | jiāo zhě bì bài | pride goes before a fall (idiom) | |
| 事必有兆 | shì bì yǒu zhào | future events always have an omen (idiom) | |
| 势在必得 | shì zài bì dé | to be determined to win (idiom) | |
| 未必见得 | wèi bì jiàn dé | not necessarily / that's not sure | |
| 睚眦必报 | yá zì bì bào | lit. to seek revenge over a dirty look (idiom) / fig. small-minded / vindictive | |
| 自不必说 | zì bù bì shuō | (idiom) needless to say / it goes without saying | |
| 生活必需品 | shēng huó bì xū pǐn | life's necessities | |
| 旅行必备品 | | travel kit | |
| 非必要服务 | | non-essential service | |
| 洛必达法则 | luò bì dá fǎ zé | L'Hôpital's rule (math.) | |
| 罗必达法则 | Luó bì dá fǎ zé | L'Hôpital's rule (math.) (Tw) | |
| 苏必利尔湖 | Sū bì lì ěr Hú | Lake Superior, one of the Great Lakes 五大湖[Wu3 da4 hu2] | |
| 我们必须裁军 | | WMD-We Must Disarm | |
| 万物必将消逝 | wàn wù bì jiāng xiāo shì | All | |
| 阴德必有阳报 | yīn dé bì yǒu yáng bào | hidden merits will have visible rewards (idiom) | |
| 多行不义必自毙 | duō xíng bù yì bì zì bì | persisting in evil brings about self-destruction (idiom) | |
| 有其父必有其子 | yǒu qí fù bì yǒu qí zǐ | like father, like son (idiom) | |
| 车到山前必有路 | chē dào shān qián bì yǒu lù | lit. when we get to the mountain, there'll be a way through (idiom) / fig. everything will turn out for the best / let's worry about it when it happens / it will be all right on the night | |
| 言必信，行必果 | yán bì xìn , xíng bì guǒ | one must be a man of his word and resolute in his work (proverb) | |
| 有宝何必人前夸 | yǒu bǎo hé bì rén qián kuā | There is no need to boast about one's treasures. (idiom) | |
| 有所得必有所失 | yǒu suǒ dé bì yǒu suǒ shī | there is no gain without a loss (idiom) / there is no such thing as a free meal | |
| 既有今日何必当初 | jì yǒu jīn rì hé bì dāng chū | see 早知今日何必當初|早知今日何必当初[zao3 zhi1 jin1 ri4 he2 bi4 dang1 chu1] | |
| 条约必须遵守原则 | | pacta sunt servanda rule / pacta sunt servanda principle | |
| 空穴来风未必无因 | kòng xué lái fēng wèi bì wú yīn | wind does not come from an empty cave without reason / there's no smoke without fire (idiom) | |
| 三人行，必有我师 | sān rén xíng , bì yǒu wǒ shī | lit. if three walk together, one can be my teacher (idiom, from the Analects of Confucius) / you have sth to learn from everyone | |
| 斯必泽空间望远镜 | sī bì zé kōng jiān wàng yuǎn jìng | Spitzer | |
| 我们必须裁军宣言 | wǒ men bì xū cái jūn xuān yán | WMD Declaration | |
| 有其师，必有其徒 | yǒu qí shī , bì yǒu qí tú | As the teacher, so the pupil. (idiom) | |
| 早知今日何必当初 | zǎo zhī jīn rì hé bì dāng chū | if I (you, she, he...) had known it would come to this, I (you, she, he...) would not have acted thus (idiom) / to regret vainly one's past behavior | |
| 区域间必需药品方桉 | | Interregional programme for essential drugs | |
| 亚洲农业必需品计划 | | Asian Agricultural Requisites Scheme | |
| 大难不死，必有后福 | dà nàn bù sǐ , bì yǒu hòu fú | one is bound for good fortune after surviving a great disaster (proverb) | |
| 德不配位，必有灾殃 | dé bù pèi wèi , bì yǒu zāi yāng | calamity will befall those whose moral standards are not in keeping with their social status | |
| 二虎相斗，必有一伤 | èr hǔ xiāng dòu , bì yǒu yī shāng | lit. when two tigers fight, one is sure to be wounded (idiom) / fig. if it comes to a fight, someone will get hurt | |
| 分久必合，合久必分 | fēn jiǔ bì hé , hé jiǔ bì fēn | lit. that which is long divided must unify, and that which is long unified must divide (idiom, from 三國演義|三国演义[San1 guo2 Yan3 yi4]) / fig. things are constantly changing | |
| 两虎相斗，必有一伤 | liǎng hǔ xiāng dòu , bì yǒu yī shāng | when two tigers fight, one will get injured (idiom) / if it comes to a fight, someone will get hurt. | |
| 两虎相争，必有一伤 | liǎng hǔ xiāng zhēng , bì yǒu yī shāng | if two tigers fight, one will get injured (idiom) / if you start a war, someone is bound to get hurt | |
| 人无远虑，必有近忧 | rén wú yuǎn lu:4 , bì yǒu jìn yōu | He who gives no thought to far-flung problems soon finds suffering nearby (idiom, from Analects). / Smug concentration on the here and now will lead to future sorrow. | |
| 三人行，则必有我师 | sān rén xíng , zé bì yǒu wǒ shī | If three walk together, one of them can teach me sth (Confucius) | |
| 杀鸡何必要用牛刀呢 | shā jī hé bì yào yòng niú dāo ne | don't use a sledgehammer to crack a nut / de minimis non curat praetor (trivial matters are of no concern to a high official) | |
| 小时了了，大未必佳 | xiǎo shí liǎo liǎo , dà wèi bì jiā | being bright at an early age does not necessarily bring success upon growing up (proverb) | |
| 智者千虑，必有一失 | zhì zhě qiān lu:4 , bì yǒu yī shī | lit. a wise person reflecting a thousand times can still make a mistake (idiom) / fig. nobody is infallible | |
| 欲善其事，必先利其器 | yù shàn qí shì , bì xiān lì qí qì | To do a good job, an artisan needs the best tools (idiom). Good tools are prerequisite to the successful execution of a job | |
| 获得许可的必要条件资格 | | certification requirements | |
| 儿童和母亲必需药品方桉 | | Programme of Essential Medicines for Children and Their Mothers | |
| 工欲善其事，必先利其器 | gōng yù shàn qí shì , bì xiān lì qí qì | To do a good job, an artisan needs the best tools (idiom). Good tools are prerequisite to the successful execution of a job | |
| 大气科学乃必要基础学科讲习班 | | workshop on atmospheric sciences as a necessary basic discipline | |
| 车到山前必有路，船到桥头自然直 | chē dào shān qián bì yǒu lù , chuán dào qiáo tóu zì rán zhí | everything will turn out all right (idiom) / let's worry about it when it happens / it will be all right on the night | |
| 成功的男人后面必有一个奉献的女人 | chéng gōng de nán rén hòu mian bì yǒu yī gè fèng xiàn de nu:3 rén | Every successful man has a dedicated woman behind him (European proverb). | |
| 维持和平利用外层空间必要条件研讨会 | | Symposium on Conditions Essential for Maintaining Outer Space for Peaceful Purposes | |
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