如果你听起来很无聊或太忙，打电话的人会认为你不礼貌。

If you sound bored or too busy, the caller will think you are impolite.

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如果你为自己和其他在场的人的安全担心，就给警察打电话。

Call the police if you fear for the safety of yourself and others who are there.

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如果你是打电话的人，说你想要和谁讲话。

If you are the caller, say who you want to speak to.

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如果打电话的人不得不等很长时间，你必须提供留口信的服务。

If the caller will have to wait for a long time, you must offer to take a message.

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如果打电话的人不得不等很长时间，你必须提供留口信的服务。

If the caller will have to wait for a long time, you must offer to take a message.

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