youdao

It's only fair to let her know that you intend to apply.

让她知道你有意申请是很公平的。

《柯林斯英汉双解大词典》

I'll let her know.

我会告诉她的。

youdao

If she helped you set up an interview, let her know how it went.

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She called the other twin -- their daughter Julie -- to let her know the news.

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After my first miscarriage, my husband called my manager and let her know what was going on.

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