out of thin airout of nowhere, as if by magic 凭空，无中生有 It seems like researchers have just pulled the numbers out of thin air. 这些数据就好像是研究人员凭空变出来似的。
out of thin air• The juice landed on the floor like a red bubbly snake, a bad omen suddenly materializing out of thin air.• Ray picks a number out of thin air -- generally below wholesale -- and the deal is done.• He found rhymes irresistible, and produced them out of thin air, just for the fun of it.
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