Unit 2△poetry n.诗（总称）；诗意tick vt.给……标记号rhyme n.韵；押韵；押韵的词vi.& vt.(使)押韵convey vt.传达；运送△emotion n.情感；情结；感情nursery n.托儿所nursery rhyme 童谣concrete adj.具体的△re...