题目内容：

be sure of和make sure of还有make certain of和be certain of的区别?

优质解答

1.be sure of 确信,有把握
例：I hope you are sure of your facts我希望你能肯定你说的都是事实
2.make sureof 设法保证
例：they scored another goal and make sure of victory.他们又进了一球,以确保得到冠军