Definition: a piece of writing or spoken information that one person gives to another Level: A1
我给他发了一条短信，告诉他我会迟到。
I sent him a ___message saying I would be late.
我收到了一条关于明天会议时间的工作消息。
I got a work ___message about the meeting time tomorrow.
请在工作时间给我发消息。
Please send me a ___message during work hours.
