释义：
turn and 转身做某事
turn 最基本的含义为转身等转变方向的行为。因此 turn and (to) +动词表示“转身做某事”。
例句：
He turned to leave, then turned back suddenly.
他转身离开，随后突然又转过身来。
She turned to her side to turned off her cell phone.
她侧身把手机关上了。
They turned around and walked back to the office.
他们转身走回了办公室。
对话：
A: Where did your friend go?
你朋友去哪了？
B: He just turned to leave the room.
他刚刚转身离开了房间。
