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1.be sure of sth对某事很确定；2.be sure to do sth一定会做某事；3.be sure that对某事很确定，后面加句子。  be sure例句 1、He might get there in time, but I can't be sure. 他有可能准时到达，但我不敢肯定。 2、Be sure to give your family my regards. 务必代我向你的家人问好。 3、Even if you did see someone, you can't be sure it was him. 即使你确实看见有个人，也不能保证那就是他。 4、England must win this game to be sure of qualifying. 英格兰队必须拿下这场比赛才能确保获得资格。 5、He is intelligent, to be sure, but he's also very lazy. 他固然聪明，但也很懒。 (责任编辑：admin) |