Please leave a message after the beep.

请在听到提示音后留口信。

If I'm not here, please leave a message.

如果我不在，请留口信。

Please leave a message after the beep.

请在哔哔声之后留言.

Meeting in progress, please leave a message.

开会中，有事请留言。

If you have any good suggestion and request, please leave a message!

如果您有什么好的建议和要求，请留言！

B:You can say something like this:Nobody is available right now. Please leave a message after the beep.

你可以这样说:“现在没有人能接电话,请在嘀声后留言。”

B: You can say something like this: Nobody is available right now. Please leave a message after the beep.

你可以这样说：“现在没有人能接电话，请在嘀声后留言。”