| 交钱 | jiao1 qian2 | to pay up |
| 借用 | jie4 yong4 | to borrow sth for another use |
| 出资 | chu1 zi1 | to fund |
| 延缓 | yan2 huan3 | to retard |
| 追溯 | zhui1 su4 | lit. to go upstream |
| 惋惜 | wan3 xi1 | to regret |
| 舍不得 | she3 bu4 de2 | to begrudge |
| 十倍 | shi2 bei4 | tenfold |
| 挥动 | hui1 dong4 | to wave sth |
| 不暇 | bu4 xia2 | to have no time (for sth) |
| 沿革 | yan2 ge2 | history |
| 重温 | zhong4 wen1 chong2 wen1 | to review |
| 掌握 | zhang3 wo4 | fluency |