They were all in top hats and cutaways despite the growing heat.虽然天气越来越热，他们仍全部戴着高顶礼帽，穿着燕尾服。Hats off to them for supporting the homeless.向他们帮扶无家可归者的善举致敬！How should we punish these bad hats?这些坏人应如何治罪?...
Tests showed increased levels of toxin in shellfish.检验表明水生有壳动物的毒素水平提高了。They dug for shellfish at low tide.退潮时他们在海滩上挖贝类。The idea of eating raw shellfish nauseates me.我一想到吃生贝就恶心....
促胃液素、缩胆囊素和分泌素作用于相同的靶器官.Gastrin and cholecystokinin and secretin act on the same target organs.胃液内含有盐酸给胃蛋白酶提供酸溶液.Gastric juice contains hydrochloric acid to provide an acidic solution for pepsin.研究促胃液素的生物化学时代开始了.The bioch...