A drop in the oceans 沧海一粟
In the subtropical oceans, by contrast, phytoplankton populations drop off in summer.
相比之下，亚热带海洋的浮游植物的种群数量在夏季回落。
In most places, the edges of the continents slope gently downward into the oceans before making a sharper drop to the ocean floor.
在大多数地方，大陆的边缘慢慢地微微地向下倾倾斜进海洋，然后陡然坠向海底。
You give me a drop of tears, I saw your heart all the oceans.
你给我一滴泪，我就看到了你心中所有的海洋。
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