她以前一定学过英语。
她英语流利并学过汉语；但她出国、去伦敦或者其他地方的机会却很少。
She spoke fluent English and learnt Chinese; yet she had little chance to go abroad, to London or anywhere else.
她没有学过英语，因此她根本不可能听懂那个英国人所说的话。
She didn't study English, so it was out of the question for her to follow what the Englishman said.
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