You want to see a concert on Saturday, but it is also your mother's birthday and you do not want to let her down.

你想在星期六去看音乐会，但那天又是你母亲的生日，你不想让她失望。

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She never get anything let her down.

她不会让任何事影响到她。

youdao

But you said, "Oh, I really like it" in order not to let her down.

为了不让她失望你却说：“噢，我真的很喜欢它。”

youdao

"So we raise her up every morning We take her down every night, We don't let her touch the ground, And we fold her up right.

VOA: special.2010.07.02

"We let her down, and for that we are very sorry, " Chesky wrote of EJ's experience in his blog post.

CNN: Airbnb apologizes: 'We have really screwed things up'

She dreaded what would happen now: the Dodge would let her down.

NEWYORKER: The Woman of the House

Arias said her lawyers let her down by not calling more witnesses who could have bolstered her claims that she was a victim of domestic violence at Alexander's hands.

NPR: Arias Jury Deadlocked But Must Keep Deliberating