Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...

近年来，我国全面展开蓝天、碧水、净土保卫战。为了号召同学们参与环保行动，学校将组织一次主题为“Let’s Go Green”的英语演讲比赛。请你写一篇 80 词以上的演讲稿。 [高分句] As middle school students, it’s ...