Mercury levels are high in marine fish, too—particularly in larger species, such as shark, tuna, and swordfish.

海洋鱼类中的汞含量也很高——尤其在体型较大的鱼类体内，如鲨鱼、金枪鱼和旗鱼。

youdao

Mercury levels are high in marine fish, too—particularly in larger species, such as shark, tuna, and swordfish.

海洋鱼类中的汞含量也很高——尤其在体型较大的鱼类体内，如鲨鱼、金枪鱼和旗鱼。

youdao