let down的意思
let down
基本释义
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使失望,辜负
If you let someone down, you disappoint them, by not doing something that you have said you will do or that they expected you to do
例句
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Don't worry, Xiao, I won't let you down.
不要担心,肖,我不会让你失望的。
近义词
使失望;放下;辜负;减速下降