sunday的复数形式怎么变

Sunday变成复数是直接加s，也就是Sundays。不可以用y->i+es的规则，因为前面不是辅音 ，Sunday是以ay字母组合进行发音的。

复数形式直接在后加s，sundays中文意思是adv. 每星期日

The art gallery waives admission charges on Sundays.

She was sacked for refusing to work on Sundays.