circlip for hole

例句：

1. 1. The circlip on the door is a key to the house.
   门上的环形圈是房子的钥匙。
2. 2.She put the circlip on the table to keep it from falling off.
   她把环形圈放在桌子上，以防它掉下来。
3. 3. The circlip was used to hold the door open until someone came to open it for her.
   环形圈用来保持门打开，直到有人为她开门。