| 鑽研HSK 6 | zuān yán | to study meticulously; to delve into | |
| 鑽探 | zuān tàn | drilling | |
| 鑽營 | zuān yíng | toadying for personal gain; to curry favor; to study in great depth | |
| 鑽心 | zuān xīn | to sneak in; to infiltrate; to be piercingly painful; to be unbearable (of pain, itch etc) | |
| 鑽空子 | zuān kòng zi | lit. to drill a hole; to take advantage of a loophole; to exploit an advantage; to seize the opportunity (esp. to do sth bad) |
| 鑽石HSK 6 | zuàn shí | diamond; Classifiers: 颗 | |
| 鑽戒 | zuàn jiè | diamond ring; Classifiers: 只 | |
| 鑽頭 | zuàn tóu | drill bit |
| 1 | This machine requires drilling. | |
| 2 | He enjoys delving into Japanese culture. | |
| 3 | Diamond is one of the hardest minerals. | |
| 4 | It takes some slow crawling to get through this hole. | |
| 5 | We need to get to the root of this problem. |