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181. off the track: 走入歧途
You are way off the track.
你偏离目标太远了。
反义：on the right track 在正确的道路上
He’s on the right track towards success.
他走在通向成功的正确道路上。
on the track of 追踪，寻找
He was on the track of an escaped criminal.
他在寻找一个逃犯。
182. be walking on air: 感到特别开心
I won the lottery today, and now I am walking on air.
我今天中了彩票，现在我特别开心。
183. wear out: 使精疲力尽，使疲乏；磨损；逐渐消失
I’m usually worn out at the end of the day.
一天结束的时候，我通常很疲倦。
wear out the patience 耗尽耐心
You are way off the track.
你偏离目标太远了。
反义：on the right track 在正确的道路上
He’s on the right track towards success.
他走在通向成功的正确道路上。
on the track of 追踪，寻找
He was on the track of an escaped criminal.
他在寻找一个逃犯。
182. be walking on air: 感到特别开心
I won the lottery today, and now I am walking on air.
我今天中了彩票，现在我特别开心。
183. wear out: 使精疲力尽，使疲乏；磨损；逐渐消失
I’m usually worn out at the end of the day.
一天结束的时候，我通常很疲倦。
wear out the patience 耗尽耐心
