三角形边长与面积 — 英语词汇题
题目
In a triangle, the segment drawn from a vertex perpendicular to the opposite side (or its extension) is called the ______, and its length can be used to compute the triangle's area.
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照镜子时，姐姐让你摸摸自己的鼻子。姐姐说：___
祈使句Touch your nose