He is been calling at people's homes, saying he's come to check that all their appliances are safe.

他一直在拜访人们的家，并称其是来检查他们所有的电器是否安全。

youdao

He has been calling at people's homes, saying he's come to check that all their appliances are safe.

他一直在拜访人们的家，并称自己是来检查他们所有的电器是否安全。

youdao

You should check the wind conditions to make sure it's safe to fly.

你应该检查一下风向以确保飞行安全。

youdao

Please stay safe and check back for more details.

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If we find something, we'll send a diver in, if safe, to check it out.

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And while many of us are looking ahead to a time when it is safe again to check our financial statements, law enforcement officials are looking backward.

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