besureofsth如何造句

be sure of sth 如何造句? 英语短语 be sure of sth 如何造句呢? 的 频道为大家整理． be sure of 的读音是： bi: #643;u#601; #596;v 用 be sure of sth 造句如下： Tom can't be sure of it right now. be sure of sth 造句例二： Theyarrived early, to be sure of getting a good seat. #