名词
中文翻译：直角
同义词：
['right angle', 'right-angled']
例句：
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1.The trigonum durum in the room was causing us a lot of trouble.
房间里的直角数给我们造成了很多麻烦。
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2.The math teacher asked us to solve the problem with the trigonum durum.
数学老师让我们用直角数来解决这个问题。
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3.The trigonum durum in the room was causing us a lot of trouble.
房间里的直角数给我们造成了很多麻烦。