go out (of) the window
US /ɡoʊ aʊt (əv) ðə ˈwɪndoʊ/
UK /ɡoʊ aʊt (əv) ðə ˈwɪndoʊ/
1.
付诸东流, 烟消云散
if something such as a quality, principle, or idea goes out of the window, it no longer exists or is no longer paid attention to
:
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When the company started losing money, all their environmental policies went out of the window.
当公司开始亏损时，他们所有的环保政策都付诸东流了。
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All my good intentions went out of the window when I saw the cake.
当我看到蛋糕时，我所有的好意图都烟消云散了。