Several(宇航员) have been to the moon by spaceship.

充值活动已开启，快来参与吧

当前位置：初中英语 / 名词 / 名词的数 / 规则变化的可数名词复数 / 词法知识

1. Several(宇航员) have been to the moon by spaceship.

相关视频

规则可数名词的复数