英语释义
1
n a collection of things sharing a common attribute
2
n a body of students who are taught together
3
n people having the same social, economic, or educational status
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n education imparted in a series of lessons or meetings
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n a league ranked by quality
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n a body of students who graduate together
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n (biology) a taxonomic group containing one or more orders
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n elegance in dress or behavior
9
v arrange or order by classes or categories