英语单词变化

问题描述:

英语单词变化
1.work-worker 2.paint-painter
3.sing-singer 4.teach-teacher
5.read-reader 6.drive-driver
7.swim-swimmer 8.write-writer
9.play-player 10.dance-dancer
11.ride-rider 12.run-runner
还有什么+er变化的单词?
举1-2个

waiter lover