| 释义 |
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 found fossils of shelly animals.他们发现了有壳动物的化石。Farming finfish, shellfish and aquatic plants, known collectively as aquaculture, is one of the world's fastest-growing food sectors.饲养有鳍鱼类、有壳水生动物以及种植水生植物统称水产养殖，是世界上目前发展最迅速的食品产业。 |