软体动物，甲壳纲动物，甚至珊瑚藻都需在其身体结构生长中用上钙，而海水酸度变高则会阻碍这一过程。

Mollusks, crustaceans, and even coralline algae are among theliving things that use calcium in their structures, a process that could beimpeded by higher acidity levels in seawater.

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只见高红兵把小黑板放在讲台上，上面写有题纲，学生们看到他满脸通红，显得有些紧张。

I saw high Hongbing small blackboard on the rostrum, wrote that the above program, the students saw him his face red, it is somewhat tense.

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