补充楼上,还有 clinician, technician, politician,等用 cian 结尾的。
还有什么 man, milkman, postman, policeman, chairman, 等,和什么什么woman, 比如说 policewoman...
还有一些没什么规律的,比如说 student, correspondent, president, astronaut, athlete, coach, staff, peasant, king, queen, prince, princess, pundit, prostitute, 还有什么 iron smith, gold smith,系列的,等等。。
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