1
let [sb] down
指辜负期望，使失望。
I promised to help, but I let him down.
我答应帮忙，但让他失望了。
使失望；辜负
先理解核心含义，再看它在真实句子里的用法。
使失望；辜负
to disappoint someone by failing to do what they expected
I promised to help, but I let him down.
我答应帮忙，但让他失望了。
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可生成：动词变形 Verb forms。只有点击后才会开始生成。
使失望；背叛或辜负某人。
To disappoint; to betray or fail somebody.
拆开并重新缝制下摆以加长。
To lengthen by undoing and resewing a hem.
降低努力程度。
To reduce one's level of effort.
在回火中软化。
To soften in tempering.
Please don't let me down tomorrow; I am counting on you.
明天请别让我失望，我指望着你呢。
He never lets down his classmates when they have a group project.
和同学做小组项目时，他从不让他们失望。
You are letting down your whole family by giving up school.
你放弃学业，正在让全家人失望。
指辜负期望，使失望。
I promised to help, but I let him down.
我答应帮忙，但让他失望了。
指将某物放低，通常用绳索。
She let down the rope ladder.
她放下了绳梯。
Not this
He let down it.
Use this
He let it down.
当"let down"意为"放下"且宾语是代词时，代词必须放在动词和介词之间，不能说"let down it"，而要说"let it down"。
Not this
I am sorry I let down.
Use this
I am sorry I let you down.
在表达"使某人失望"时，"let down"是及物动词短语，必须接宾语；不能说"let down"单独表示失望，需要明确指出使谁失望，如"let you down"。
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Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
Use let down naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.