... origin 起源，血缘 ought to do sth 应该 overcome a difficult 克服困难 ...
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... right away立即；马上 ought to do sth应该做某事 ought not to do sth不应该做某事 ...
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... 应该报告的火灾 reportable fire 应该做什么 ought to do sth 你没什么不应该的 no reason why you shouldn't ...
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