Doubts about how deep the plankton would sink have raised questions on how permanent a solution it would be.

对浮游生物能下沉多深的疑问使人们质疑这个方法在长期内的有效性。

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Doubts about how deep the plankton would sink have raised questions on how permanent a solution it would be.

对浮游生物能下沉多深的疑问使人们质疑这个方法在长期内的有效性。

youdao