单词	groin
释义	groingroin /grɔɪn/ noun [countable] Etymology ETYMOLOGYgroin Origin: Old English grynde valley; influenced by groin animal’s nose (14-19 centuries) 1 the place where the tops of your legs meet the front of your body2earth science, geography a low wall built out into the ocean to prevent the ocean from removing sand and stones from the shore [Origin: Old English grynde valley; influenced by groin animal’s nose (14–19 centuries)]
随便看	-ism ism isn't ISO iso- isobar isolate isolated isolation isolationism isolationist isolation period isomer isometric isometric projection isometrics isometry isosceles isosceles trapezoid isosceles triangle isotherm isotonic isotope ISP I-spy

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