Think about where fish and shellfish live.
想想鱼类和贝类所生活的环境。
Concentrations of toxins can be as high as nine million times those found in the waters in which fish and shellfish live.
鱼肉中毒素的浓度可高达鱼类和贝类所生活水域毒素浓度的9百万倍。
They live by gathering shellfish and snails.
他们靠采集贝类和蜗牛为主。
They live by gathering shellfish and snails.
他们靠采集贝类和蜗牛为主。
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