I'm not sure. I'll have to check.
我不能确定，我必须查一下。
疯狂英语拿手好戏卡 提出问题、回答技巧 - 如何拖延

📚 句中词汇解析

从本句中提取的重要词汇

sure [ʃʊr] 词频1
adj. 确信的，确实的;有把握的;无疑的;一定的; adv. 当然;确实地;无疑地;
"Make sure the shelf is aligned with the top of the cupboard."
务必使搁架与橱柜顶端对齐。
近义：inarguable, incontestable, incontrovertible, indefectible, indisputable, indubitable 反义：hesitant, hesitative, imprecise, improbable, inconclusive, indecisive
check [tʃɛk] 词频1 词根: ch-
vt. 检查，核对;制止，抑制;在…上打勾; vi. 核实，查核;中止;打勾;[象棋]将一军; n. <美>支票;制止，抑制;检验，核对;
💡 che(车)+ck(开):把车打开,仔细 检查
"The President was given a blank check by Congress to continue the war."
国会授予总统全权可继续这场战争。
近义：inspect, ascertain, prove, revise, verify, vouch

📚 更多「疯狂英语拿手好戏卡」例句

There has been very little progress this term.
这学期没有什么进步。
The instructions were not easily understandable.
这份说明书不容易理解。
You have a very beautiful eyes.
你的眼睛真漂亮。
The girl always wears a happy smile.
这女孩随时都面带快乐的微笑。
He's gone out of business.
他失业了。
He went to Canada on business.
他因公赴加拿大。