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could可以表示能力、许诺、请求或某种可能性,could还可用于:①提出委婉的请求,(注意在回答中不可用could)。例如:CouldIhavethetelevisio
o
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y。例如:Wouldyoulikesomecake吃点蛋糕吧。③否定结构中用will,一般不用wouldwo
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tyousitdow
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