题目内容
n. the act of looking closely at sth/sb, especially to check that everything is as it should be
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v. to put sth into sth else or between two things
n. a device in a vehicle for making a loud sound as a warning or signal; a hard pointed part that grows, usually in pairs, on the heads of some animals, such as sheep and cows.
n. a small part or amount of sth
adj. not guilty of a crime, etc. ;not having done sth wrong
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