He just wasn't a good student. He wasn't cutting the mustard and we let him go.

他不是什么好学生。不合格，我们就让他走了。

《柯林斯英汉双解大词典》

We let him go.

我们得让他走。

youdao

Can we let him go?

可以让他走了吗？

youdao

Poor little Laura, my baby, to whom I had told everything about Dean, began almost to cry."Oh, we shouldn't let him go like this.What'll we do?"

可怜的小劳拉，我的宝贝，我曾经把狄恩的一切都告诉过她，这时她几乎要哭了：“噢，我们不能让他就这么走“

耶鲁公开课 - 1945年后的美国小说课程节选

I disagree that we should let him go.

我不赞成解雇他。

I agree实战 - SpeakingMax英语口语达人

We let him go on about the serial numbers because his outrage was typical of the time.

NPR: Excerpt: 'Then We Came to the End'

But we can't just let him go, and we can't just let him rot, so you have to give him and his accomplices their day in court.

ECONOMIST: Barack Obama's BlackBerry

We have tracking rules and I think he was going to hit him and he let him go, and because of that we got a little out of position.

WSJ: Ovechkin penalties spur Rangers' 4-1 win over Caps