grampus的复数形式怎么拼写

The stairs made him puff like a grampus.爬楼梯爬得他气喘如牛.A cetacean ( Grampus griseus ) related to and resembling the dolphins but lacking a beaklike snout.灰海豚,逆戟鲸一种与海豚有亲缘关系并形似海豚的鲸类动物 ( 灰海豚灰海豚属 ),但缺少喙状口鼻部....

grampus的音标：grampus的英式发音音标为：['græmpəs]grampus的美式发音音标为：['græmpəs]...

n.灰海豚，虎鲸...