名词
中文翻译：Unknown
同义词：
['total', 'all', 'entire例句：1. The total number of students in the class is 45.（班上学生总数是45人。）']
例句：
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1. The total number of students in the class is 45.
班上学生总数是45人。
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2. All the students are expected to participate in the activity.
所有学生都应参加这项活动。
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3.The total cost of the trip is $500.
这次旅行的总费用是500美元。