Please let me know how many are coming, if any.

请告诉我，如果有人要来的话，有多少？

《牛津词典》

As you only have a short stay in Shanghai, you probably will not be able to do much more sightseeing. But if I can help in any other way, please let me know.

由于您在上海只能做短暂停留，您可能无法做太多的观光。但如果我能在任何其它方面帮上您的忙，敬请告知我。

youdao

But it's likely that we will need all of you to work this weekend so if any of you can't, please let me know as soon as possible.

但是很可能这个周末我们需要你们所有人都去工作，所以如果你们中有谁不能去，请尽快通知我。

youdao

As I say, the syllabuses should be accessible on the Classsv2 server; however, I've had problems with that in the past and you should please let me know if it's not.

你们可以在2号课程服务器上下载大纲;,不过我曾经下载不了,如果现在还不能下的话，一定要告诉我。

耶鲁公开课 - 现代诗歌课程节选

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