1 [C] a person whose job is to repair and work with machines 机械工；修理机器的工人；技工: a car mechanic 汽车修理工人

2 mechanics [U] the science of how machines work 机械学；力学

3 the mechanics [pl] the way in which sth works or is done 运作；操作: Don't ask me -- I don't understand the mechanics of the legal system. 不要问我，我不了解法律制度的运作。