Tra từ be sure - Từ điển Oxford Advanced Learner 8th

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Từ điển Oxford Advanced Learner 8th

be sure to do something be sure to do sth idiom used to tell sb to do sth •Be sure to give your family my regards. In spoken English and plus another verb can be used instead of to and the infinitive •Be sure and call me tomorrow. Main entry: ↑sure_idiom