Pearls contain a mixture of protein and calcium carbonate secreted by certain types of molluscs.

珍珠是某些类型的软体动物分泌的碳酸钙同蛋白质一起构成的混合物。

Most crocodilians, he reminded people, preferred to dine on fish or molluscs rather than farmers.

他提醒人们，鳄鱼宁愿吃鱼或软体动物而不愿吃农夫。

What does it mean to think What equipment is needed to think? Do molluscs have such equipment?

什么叫做思考？进行思考需要什么器官？软体动物有这种器官吗？

Of course, molluscs are vital links in the complex chain of life. - Hm.

当然 软体动物是复杂生物链中的关键链接 - 嗯。

They were as two horns which the sluggish heath had put forth from its crown, like a mollusc, and had now again drawn in.

两个人好像是软体动物一般懒怠的荒原伸出来的一对触角，现在们缩了回去。

Most of the main groups of the animal kingdom—arthropods, brachiopods, coelenterates, echinoderms, molluscs and even chordates, the branch from which vertebrates went on to develop—are found in the fossil beds of the Cambrian.

人们在寒武纪群落里发现了动物王国的主要动物集群，包括腕足、腔肠、棘皮、软体和脊索（脊椎动物进化的分支）。

That encourages the growth of planktonic algae, and thus of everything that feeds on such plankton, or feeds on what feeds on them, including jellyfish, and also various molluscs and crustacea that loggerheads enjoy as an appetiser.

这有利于浮游藻类生长，因此也有利于以这些浮游生物为食的动物，或以这些动物为食的动物生长，包括水母，还有各种各样的软体动物和甲壳动物，这些都是红海龟的最爱。

His undoing began when a committee of the Royal Society-a committee of which he happened to be chairman decided to award him its highest honor, the Royal Medal, for a paper he had written on an extinct mollusc called the belemnite.

英国皇家学会的一个委员会——欧文恰好是该委员会的主席决定授予他最高的荣誉：英国皇家勋章，表彰他写的一篇关于一种名叫箭石的、已经绝种的软体动物的论文。