高考问答主角修先天大五行神光:英语 词组 辨析
来源：百度文库 编辑：高考问答 时间：2024/05/16 05:28:00
be sure of 与 bu sure to 有什么不同？
be sure of sth./sb. = have confidence in sth.
对…有充分的信心，
e.g. He is quite sure of himself.
sb. be sure to do sth. = It is sure that sb. will do sth.
…肯定会做…
e.g. Jimmy is sure to arrive on time.