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VOA慢速英语:许多帝王蝶不飞往南方过冬
2017-11-08来源:和谐英语
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straggler – n. a person or animal that moves slower than others and becomes separated from them
habitat – n. the area where a plant, animal or insect normally lives
pesticide – n. a product that kills animals or insects that damage crops
milkweed – n. a type of North American plant that has white juice
caterpillar – n. a small creature that is like a worm with many legs and that changes to become a butterfly or moth