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英语
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many thousands of people have been infected with the virus.
为什么infect要加ed,是因为他是被动语态吗?凡是被动语态动词都要加ed吗?
人气：459 ℃ 时间：2019-10-19 16:42:37
解答
这里infect是用的被动形式,所以加ed,人做主语,被病毒感染.
所有的被动都要用对应恶过去分词,不过由于特殊情况和不规则变化,并不是简单的加ed
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