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n. the process of choosing sb. /sth. from a group of people or things, usually according to a system
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n. a weapon with a long wooden handle and a sharp metal point used for fighting, hunting and fishing in the past
vi. to make a very loud, deep sound; n. a loud deep sound made by an animal, especially a lion, or by sb. 's voice
n. a person who is an expert in a particular area of work or study
n. a type of solid, liquid or gas that has particular qualities
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