题目内容
v. to start an activity, especially an organized one
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adj. very great; very strong; serious and often involving a lot of action in a short period of time
n. a piece of iron that attracts objects made of iron towards it, either naturally or because of an electric current that is passed through it
n. a dirty or untidy state;
v. to say or do sth. that offends sb.; n.a remark or an action that is said or done in order to offend sb.
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