The deadliest kind are discarded fishing lines and nets. 最致命的是废弃的渔线渔网

104. But, in today's ocean, they are being replaced by something else...
     然而如今的海洋中 取代水草浮岛的是
105. ..plastic.
     塑料
106. 12 million tons of it end up in the ocean every year.
     每年有1200万吨塑料最终流入海洋
107. The deadliest kind are discarded fishing lines and nets.
     最致命的是废弃的渔线渔网
108. Each year, it's likely over half a million animals are ensnared
     每年 约有50多万只动物
109. and killed by these "ghost nets."
     被这些"幽灵网"困住并死亡
110. But some animals are learning
     但有些动物在学习

来自《行星地球 第三季 第二集 Planet Earth S03E02 海洋》第 107 行