n. 级别, 阶级（class复数形式）

n a collection of things sharing a common attribute

n a body of students who are taught together

n people having the same social, economic, or educational status

n education imparted in a series of lessons or meetings

n a league ranked by quality

n a body of students who graduate together

n (biology) a taxonomic group containing one or more orders

n elegance in dress or behavior

v arrange or order by classes or categories