问题描述：
What must it not be doing
通常以这句话开头的句子是什么意思呢?是什么用法啊
If the oil is killing the life along the coral heads,what must it not be doing to the plankton at sea which provide 70% of the oxygen we breathe?就这句话的意思
通常以这句话开头的句子是什么意思呢?是什么用法啊
If the oil is killing the life along the coral heads,what must it not be doing to the plankton at sea which provide 70% of the oxygen we breathe?就这句话的意思
问题解答：
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