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
2mechanics [U] the science of how machines work 机械学;力学
3the 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。