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could [英] [kʊd] [美] [kʊd] [助动] 能够 词频排名 133/55435 学习人数 61052 难度等级 3/10 认知比例 91.12% 例句 Could you help me? 你能帮我一下吗? I could see that something was wrong. 我能看出有麻烦了。 Could I borrow your pen? 我能借一下你的笔吗? 助记 扩展 "could是 can的过去式。意思皆为能够,但是 could 比 can委婉。 以 could引导的疑问句要用 can来回答。 be able to能够。 could,can,都是情态动词。无人称和数的变化。后加动词原形。"
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