题目内容
vt. to make sth. sharper; to become sharper
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n. a special chair used by a king or queen to sit on at ceremonies
n. a crowd of people; vt. to go somewhere or be present somewhere in large numbers
v. to continue to live or exist; to continue to live or exist despite a dangerous event or time
n. the size or extent of sth., especially when compared with sth. else; a range of levels or numbers used for measuring sth.
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