英文：make sure

美式讀音：mek ???r

confirm：vt. 確認(rèn)；確定；證實(shí)；批準(zhǔn)；使鞏固

ensure：vt. 保證，確保；使安全

ascertain：vt. 確定；查明；探知

make sure：確信；證實(shí)

determine：v. （使）下決心，（使）做出決定；vt. 決定，確定；判定，判決；限定

例句：

1、已展開調(diào)查以確定事故原因。

An inquiry was set up to determine the cause of the accident.

2、我不確定我會(huì)不會(huì)再相信人。

I'm not sure I'll ever trust people again.

3、我不確定這是勇氣還是頑固。

I am not sure whether this was courage or pigheadedness.

4、我們不太確定這顆彗星是否會(huì)錯(cuò)過地球。

We were not altogether sure that the comet would miss the Earth.