帝王蝴蝶的颜色:black,orange 帝王蝴蝶的食物: milkweed,nectar 帝王蝴蝶的成长过程: egg,hatch,caterpillar,chrysalis,butterfly,oeneration 与帝王蝴蝶迁徙有关的词: migrate,migration,journey,trip,travel milionsof成千上万的 insearch of...寻找;搜寻 attheendof在......未;在·.....结束时 feed on 以·.....为食 as if 好像;似乎 stop...from 阻止·...··做 倍数的表达方式，例如: That's about three times faster than wecan run. 动词的过去分词形式作后置定语，例如: A caterpillar creates a hardprotective coating around itself called a chrysalis. 动名词作主语，例如: Tagging butterflies is one way. redits