Definition
to bid farewell to someone by waving as they depart a location
向某人揮手告別
At the airport, she waved her parents off.
在機場，她向父母揮手告別。
I waved him off at the door until his car was out of sight.
我在門口向他揮手告別，直到他的車消失在視線中。
I always go to wave my friend off before their trips.
我總是在朋友旅行前去向他們揮手告別。