He turned the key in the lock.
他转动钥匙开锁。
She turned the key in the lock.
她转动锁眼里的钥匙。
Well, that's my good turn for the day.
好啦，这就是我今天做的'好事。
You must signal which way you are going to turn.
你要朝哪个方向转，必须发出信号。
Whether we need more food depends on how many people turn up.
我们是否需要更多的食物，这要视到场人数而定。