pluck something out of the air (also pluck something out of thin air)INVENT to say or suggest a number, name etc that you have just thought of, without thinking about it carefully 随口说出〔一个数字、名字等〕 I’m plucking a figure out of the air here, but let’s say it’ll cost about $15,000. 这里我随口说一个数字,比如说这要大约15,000美元。
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