wear out 穿破；磨损；(使)筋疲力尽；耗尽。wear有保持某种状态的意思。
扩展wear out one's welcome呆得太久而不受欢迎...
【例句】
She dropped into a chair, utterly worn out.
她一下子坐到椅子里，筋疲力尽了。
Every time she consulted her watch, she wondered if the batteries were wearing out...
每次她看手表，都会怀疑是不是电池没电了。
【例句】
She dropped into a chair, utterly worn out.
她一下子坐到椅子里，筋疲力尽了。
Every time she consulted her watch, she wondered if the batteries were wearing out...
每次她看手表，都会怀疑是不是电池没电了。
