题目内容
n.an untidy state; a lack of order or organization; violent behaviour of large groups of people
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v.to protect sb./sth from attack; to say or write sth in support of sb./sth. that has been criticized
v.to keep sb./sth. inside the limits of a particular activity, subject, area, etc. ; to keep a person or an animal in a small or closed space
adj. of a good enough standard or quality; acceptable to people in a particular situation
n. the length of time that sth. lasts or continues
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