He left the phone off the hook as he didn't want to be disturbed.

他不想被电话打扰，就把电话听筒摘下来了。

《牛津词典》

Sure a bouquet of flowers or some other last minute gift would be nice and probably get you off the hook but what would that mother really want to do for that special day?

一束鲜花或一些最后一刻的礼物肯定不错，也许还让你摆脱困境。 但是妈妈在那个特别的日子最想做什么呢？

youdao

When you’re feeling down, you might be tempted to let yourself off the hook, to think, “I’ll allow myself to skip my run today, I need a break.”

当你情绪低落的时候，你可能会试图放纵自己，想着“今天就偷懒别去跑步吧，我需要休息”。

youdao

By then the FDIC was actively pursuing directors and officers of failed banks, but auditors seemed to be off the hook.

FORBES: A Tale of Two Lawsuits -- PricewaterhouseCoopers and Colonial Bank

All the same, for some such countries, it seems far too soon to be letting the Kremlin off the hook.

ECONOMIST: Europe.view

But bankers say that, with so many eyes on Pakistan, it is unlikely to be let off the hook for long.

ECONOMIST: Test case