| 怎么回事 | zěn me huí shì | what's the matter? / what's going on? / how could that be? / how did that come about? / what's it all about? |  |
| 心中有数 | xīn zhōng yǒu shù | to know what's going on |  |
| 探看 | tàn kàn | to visit / to go to see what's going on | |
| 一问三不知 | yī wèn sān bù zhī | lit. to reply "don't know" whatever the question (idiom) / fig. absolutely no idea of what's going on / complete ignorance | |
| 葫芦里卖的是什么药 | hú lu lǐ mài de shì shén me yào | what has (he) got up (his) sleeve? / what's going on? | |
| 秀才不出门，全知天下事 | xiù cai bù chū mén , quán zhī tiān xià shì | a learned person need not leave his home to know what's going on in the world (idiom) | |
| 秀才不出门，能知天下事 | xiù cai bù chū mén , néng zhī tiān xià shì | a learned person need not leave his home to know what's going on in the world (idiom) | |
