greenfly

n (pl unchanged 复数不变) any of various kinds of small insects (aphids) that are harmful to plants 蚜虫.

grebe, Grecian, Greece, greed, greedily, greediness, greedy, Greek, green, green belt, green fingers, Green Paper, green pound, green salad, green tea, green-eyed monster, green-room, greenback, greenery, greenfinch, greengage, greengrocer, greenhorn, greenhouse, greenish, greenness, Greenwich, Greenwich Mean Time, greenwood, greet, greeting, greetings, gregarious, gregariously, gregariousness, Gregorian, Gregorian calendar, Gregorian chant, gremlin, grenade,