Today, they will introduce to you our newly built plant and research center.
今天,他们将会向您介绍我们新落成的工厂和研究中心。
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。