thin air

名词 n.
中文释义

英文释义

名词 n.
  1. An unknown location; (by extension) apparent disappearance or nonexistence. figuratively,humorous,idiomatic,uncountable,usually
    — Where did you think the exhaust would go? Into thin air?
  2. Used other than figuratively or idiomatically: see thin, air, (especially, low-density air as a result of high altitude). uncountable
    — You'll need to stay mindful of taking breaks, drinking water, and avoiding overexertion up here, because you're dealing with thin air at this altitude.
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