Back in the 1970s, most experts thought the southern sea otter population would expand at a swift clip of nearly 20% per year like those in Alaska.

早在20世纪70年代，多数专家认为南部海獭数量将阿拉斯加的那样以每年近20%的增长率快速增长。

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Back in the 1970s, most experts thought the southern sea otter population would expand at a swift clip of nearly 20% per year like those in Alaska.

早在20世纪70年代，多数专家认为南部海獭数量将阿拉斯加的那样以每年近20%的增长率快速增长。

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