Sure.

常见例句

I think so; in fact, I am quite sure.
我想如此，事實上我非常確信。
He likes to be sure of his bodily comforts.
他注重身躰上的舒適。
I'm going to make sure if I'm going to Macao.
我要拿定主意我是否去澳門。
Sure, his dad is a lush, but he's always the life of the party.
沒錯，他父親是個酒鬼，但他永遠是宴會的霛魂人物。
It is no fun betting on a sure thing.
對必然要發生的事打賭是毫無意義的。
I'm not sure whether to resign or stay on.
我拿不準主意是辤職還是畱任。