Drugs are possibly not as safe as previously thought.
Drugs may not be as safe as previously thought.
请问老师,这两个句子是否存在差别?
二个句子意义相同,但结构不同。一个用副词表示情态意义——可能性,一个用情态动词表示推测——可能。还可以用形容词likely, possiple表示这种意义:
It is likely/possible that drugs are not as safe as previously thought.
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