4周搞定2000+托福核心词
undergo = under(在…下) + go(走) = 在下面走过→经历
underth = under(在…下) + th(表名词) = (长在大树下面的)灌木
下面,下侧,底面
underside
常考释义
n. 下面；底面
He peered at the underside of the car, but he could see nothing.
他仔细查看了车底，但什么也没看见。
the underside of the eyelid
眼睑内侧
Yellow flashes on the underside of its wings
它翅膀下面黄色的瞬彩
The underside of the rock was covered with seaweed.
岩石的下面布满了海草。
Another easy way to ensure ripeness is to check the underside of a watermelon.
另一个鉴别西瓜熟不熟的简单方法就是看它的底部。
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