Unit 3 Wash Your Hands FirstLesson 2Learn new words!clean adj.干净的dirty adj.脏的left adj.左边的right adj.右边的leftrightleft handright handleft footright footleft legright legdirtydirty bodyIt is dirty.cIeanclean handIt is clean.你学会了吗?我们一起练一练吧!用合适的形容词描述下列物体。cleandirtylegleft 你做对了吗!