River crab河蟹;螃蟹;中华绒螯蟹
Dungeness crab首长黄道蟹;珍宝蟹;丹金尼斯大海蟹;邓杰内斯蟹
horseshoe crab马蹄蟹;蹄蟹;美洲鲎
Crab Pulsar蟹状星云脉冲星;蟹状脉冲星
Soldier Crab寄居蟹;兵蟹
Crab Effect捕蟹效应
Boston Crab波士顿蟹式固定;详细翻译
Sautéed Crab炒蟹
Snow Crab雪蟹;阿拉斯加雪蟹;鳕蟹;蟹类
The chief results are as follows:1. The habit and reproductive biology of crab Hemigrapsus penicillatus are preliminarily investigated.
研究结果如下： 1．本文对绒螯近方蟹的生态习性和繁殖生物学进行了初步的调查和实验研究。
参考来源 - 绒螯近方蟹在对虾白斑综合症病毒（WSSV）传播中的作用Crab is the perfect biologic model on research of the amphibious crab-liked robot.
通过对比分析得出海蟹是研究浅滩水陆两栖、高灵活仿生机器蟹理想的生物原型。
参考来源 - 两栖仿生机器蟹模型建立与步行足协调控制技术研究N-COUNT（可数名词） A crab is a sea creature with a flat round body covered by a shell, and five pairs of legs with large claws on the front pair. Crabs usually move sideways. 螃蟹
N-UNCOUNT（不可数名词） Crab is the flesh of this creature eaten as food. 蟹肉
I can't remember when I last had crab.
我不记得上次吃蟹是什么时候了。
N-COUNT（可数名词） crab apple的缩写 → short for crab apple
V（动词） to hunt or catch crabs 捕蟹