out of thin air 无中生有地 ; 无中生有
out-of-thin-air safety 称之为最低限的安全性
Be out of thin air 惹是生非
come out of thin air 来自真空
Out of the thin air 无中生有
out t of thin air 无中生有地
He had materialized out of thin air; I had not seen or heard him coming.
他突然神秘地出现了；我既没看到也没听到他进来。
When that happens, we pretty well prance around the house like we've somehow magically manufactured a day out of thin air.
当这种情况发生时，我们就会在屋子里欢蹦乱跳，就好像凭空变出了一天似的。
It's universally acknowledged that success never comes out of thin air.
人们公认，成功永远不会凭空产生。
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