forsure用法及例句
for sure侧重点用作定语，表示经证明可靠，确实。for sure+不定式”往往表示推测的口气,主语不一定是人,表示“确实”“必定”。
例句
One thing is for sure ─ its not going to be easy.
有一点可以肯定——事情不会很容易。
I think he\'ll be back on Monday, but I can\'t say for sure.
我想他星期一会回来，不过我不敢肯定。
Don\'t tell her about the job until you know for sure ─ we don\'t want to raise her hopes.
没确定之前别告诉她工作的事——我们不想让她期望过高。
Even to this day we don\'t know what happened for sure.
即使到现在我们也不确定究竟发生了什么。