n. 中国腾讯公司开发的个人电子网络传呼软件
🗣️ 情景例句
are important for the sales of your book.
对于你这本书的销售很重要。
About how long does it take?
大约要坐多久？
When there is no one in the office, you can leave the answering machine on so that people who call you up can leave a message.
当无人在办公室时，你可以打开留言机，这样打电话给你的人就可以留言了。