题目内容
n. a type of job that needs special training or skill, especially one that needs a high level of education
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v.to throw sb. /sth. with force; n. an area of ground specially prepared and marked for playing a sports game
vt. to control sth. by means of rules; to control the speed, pressure, temperature, etc. in a machine or system;
n. the unit of money in the UK, worth 100 pence; v. to hit sth. /sb. hard many times, especially in a way that makes a lot of noise
v. to become quicker or make sth. quicker
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