| 来历不明 unknown source or origin |
| 来历可疑 a person of shady antecedent... |
| 来历清楚 have a clear record |
| 来去分明 There is no secret about one... |
| 来去匆匆 come and go in haste |
| 来去无羁 come and go of one's own fre... |
| 来去无踪 come and go without leaving ... |
| 来去自如 come and go freely |
| 来去自由 freedom to come and go |
| 来吃顿便饭 Come along and take potluck. |
| 来回 make a round trip |
| 来回摇摆 oscillate |
| 来回晃荡 swing to and fro |
| 来回来去 back and forth |
| 来回来去地说 say sth. over and over again |
| 来回来去地跑了好多趟 run back and forth many time... |
| 来回溜达 stroll back and forth |
| 来回票 return ticket |
| 来回飞行 round-trip flight |
| 来复 reflex |
| 来复式收音机 reflex receiver |
| 来复放大 reflex amplification |
| 来复枪 rifle |
| 来复电路 double-amplification circuit |
| 来复线 rifling |
