1、用法：each作“各自的”，“每个的”解，作形容词用：There are many trees on each side of the river.河流两岸许多树。Each element has some special properties.每种元素都有些特殊性质。
2、作“各子”、“每个”讲，作代词用：Each has his advantages.各人都有其优点。He gave each of us a tool.他给我们每人一件工具。
3、作“各子地”讲，作副词用：Give them two books each.(=Give each of them two books.)给他们每个人两本书。The students have ten books each.(=Each of the students has ten books.)这些学生每人有十本书。