1·It's a bit inconsiderate of her not to let you know when she expects to arrive.
她不让你知道她什么时候会到，这样做有些不体谅人。
—— 《柯林斯英汉双解大词典》
2·I just want to let you know that I will always be there for you in your hour of need.
我只想让你知道当你急需帮助的时候我会一直在你身边的。
3·The umbrella will not only tell you the weather, but also let you know you've left it behind.
雨伞不仅能告诉你天气，还能让你知道你已经忘记带伞了。
4·We'll let you know if any vacancies come up.
一有空缺，我们就会通知你。
—— 《牛津词典》
5·I'll have a think and let you know tomorrow.
我要好好想一想，明天告诉你。
—— 《牛津词典》
6·Could I sleep on it and let you know tomorrow?
能不能让我晚上考虑考虑，明天答复你？
—— 《牛津词典》
7·The microwave beeps to let you know when it has finished.
微波炉烹饪完毕时会发出哔哔声提醒你。
—— 《牛津词典》
8·That's it for now, but if I get any news I'll let you know.
现在就这些，如果再得到消息，我就通知你。
—— 《牛津词典》
9·When they arrive, I'll let you know at once.
当他们到达时，我会马上通知你。
10·When the books are back and are ready for you, the librarian will let you know.
当书还回来并为你准备好时，图书管理员会通知你。