Prefixing
[计] 加前缀, 加词头
🗣️ 情景例句
They graduated from high school last year.
他们去年高中毕业。
Before I eat dinner,I read the newspaper for a while.
在我吃晚饭以前，我花一会儿读报纸。
Meanwhile, a number of university students have volunteered to drive buses while the strike lasts.
与此同时，有一部分大学生自愿在罢工期间驾驶公共汽车。