work-worker teach-teacher,再举几个类似的例子

问题描述:

work-worker teach-teacher,再举几个类似的例子
work-worker teach-teacher
再举几个类似的例子

act-actor
wait-waiter
farm-farmer
sing-singer
run-runner
keep-keeper
play-player
dance-dancer
jump-jumper
clean-cleaner
drive-driver
dive-diver