| 二元 | èr yuán | duality / dual / bipolar / binary | ![]() |
| 两重 | liǎng chóng | dual / twofold | ![]() |
| 对偶 | duì ǒu | dual / duality / antithesis / coupled phrases (as rhetorical device) / spouse | ![]() |
| 双学位 | shuāng xué wèi | dual degree (academic) | ![]() |
| 双核 | shuāng hé | dual core (computing) | ![]() |
| 双重国籍 | shuāng chóng guó jí | dual citizenship | ![]() |
| 丁克 | dīng kè | Dual Income, No Kids (DINK) (loanword) | ![]() |
| 双连接站 | shuāng lián jiē zhàn | dual attachment station | ![]() |
| 喒 | zán | a dual pronoun, I, you and me, we two | ![]() |
| 多重国籍 | duō chóng guó jí | dual nationality | ![]() |
| 对偶多面体 | duì ǒu duō miàn tǐ | dual polyhedron | ![]() |
| 双点火电路 | shuāng diǎn huǒ diàn lù | dual firing circuit | ![]() |
| 双舱客货车 | double cabin pick-up / dual cabin pick-up | ![]() | |
| 双匙制度 | dual key system / dual key arrangement | ![]() | |
| 双匙安排 | dual key system / dual key arrangement | ![]() | |
| 双职工和工作人员流动方桉 | Dual Career and Staff Mobility programme | ![]() | |
| 养老金双轨制 | yǎng lǎo jīn shuāng guǐ zhì | dual pension scheme (PRC) | ![]() |
