单词	Cetacea
释义	Cetacea plural noun Ce·​ta·​cea sēˈtāshēə : an order of completely aquatic mostly marine eutherian mammals consisting of the whales, dolphins, porpoises, and related forms, all having a very large head, a tapering body like a fish and nearly devoid of hair, forelimbs like paddles, no hind limbs, a tail ending in a broad horizontal fin, a large brain, a complex stomach of four or more chambers, and two mammae posterior in position Word History Etymology New Latin, from neuter plural of cetaceus cetaceous
随便看	have a grip on have a hand in have a handle on have a hard time have a head for have a high opinion of have a high opinion of (something) have a high opinion of something have a high regard for have a hollow ring have a horror of have a hunch have a jump on have a late start have a laugh about have a laugh about something have a leak have a leg up have a line on have a lock on have a look have a loose screw have a lot going for you have a lot in common have a lot to answer for

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。