This is a piece of abalone seashell that I keep on my desk.

这是我子上的一片鲍鱼贝壳。

When abalones did not rebound, commercial fishing was also banned.

当鲍鱼的数量没能恢复时，商业捕捞也被禁止。

Without urchins' presence, juvenile abalones are less likely to survive to adulthood.

没有海胆的存，小鲍鱼太可能活到成年。

B. They are responsible for the decline of abalones in some regions.

它们导致了某些区域的鲍鱼的减少。

Finally, inspired by remarkable biological materials such as silk, abalone shell, tooth and others, we're designing new protein-based materials to address challenges in energy and ecological issues.

最后，受丝绸、鲍鱼壳、牙凡生物材料的启发，我们正设计新的基于蛋白质的材料， 以应对能源和生态问题方面的挑战。