swivel

名词 swivel:

1. a coupling (as in a chain) that has one end that turns on a headed pin

动词 swivel:

1. turn on a pivot
   同义词：pivot

1. She swivelled the telescope (round).
   她用望远镜向四周看。
2. He swivelled (round) in his chair to face us.
   他把坐著的转椅转过来面向著我们。