But we couldn't find them all为什么不是found
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But we couldn't find them all为什么不是found
But we couldn't find them all
为什么不是found
But we couldn't find them all为什么不是found
couldn't后要接动词原形
翻译:但是我们怎么也找不到他们.
前面有could,后面+动词原形
因为前面是情态动词could
因为情态动词 could后接动词原形。