名词
中文翻译：数字
同义词：
['figure', 'figure out', 'count', 'tally']
例句：
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1.The teacher asked us to count the students in the classroom.
老师让我们数一下教室里的学生。
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2.I need to figure out how many books are in my backpack.
我需要算出我的书包里有多少本书。
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3.Counting is a great way to keep track of what we have.
计数是一种很好的记录我们拥有的东西的方法。