Pearl mussel disease because it went through a painful process, become famous businessman also experienced a bumpy.

蚌病成珠是因为它经历了一个痛苦的过程，商人成名也历经了坎坷。

youdao

They included cold-blooded organisms that ranged in average lifespan from 11.6 days for the copepod (small crustaceans) Arcartia tonsa to 74 years for the pearl mussel (Margaritifera margaritifera).

他们包括平均寿命只有11.6天的桡脚类的动物（一种小的甲壳类动物）非洲的汤氏纺锤水蚤，和可以存活74年的珍珠胎贝(珠母贝)。

youdao

Krill meal, fish meal, squid liver powder, mussel meal, liver meal, brewer yeast, spirulina, wheat flour, seaweed powder, pearl powder, astaxanthin, - glucan, vitamin and trace minerals.

磷虾肉，鱼肉，乌贼肝末粉，牡蛎肉，肝脏，啤酒酵母，蓝绿藻，面筋粉，海藻粉， 珍珠粉，虾红素， -多糖体，维他命及微量矿物质。

youdao

According to Scottish Natural Heritage, 72 of Scotland's rivers support reproducing populations of freshwater pearl mussel including many of the world's largest populations.

BBC: Freshwater pearl mussels