Unit4 Don’t eat in class1、 rule n. 规则;规章2、 arrive v. 到达3、 (be) on time 准时4、 hallway n. 走廊;过道5、 hall n. 大厅;礼堂6、 dining hall 餐厅7、 listen v.
Why will people have robots in their homes in the future?eg:Ø She is going to lend us her book. 她打算把书借给我们。