I'm calling to ask you some questions about Susan.
我打电话是想问一些关于苏珊的事。
We used to go to the movies about once a week.
我们过去常一个星期大约去看一次电影。
Yes, I see. How can they get rid of waste water in this way? What a terrible colour the sea is now! It looks as if our class won't be able to bathe at all.