Je was op zoek naar: i can't be sure, (Engels - Chinees (Vereenvoudigd))

i can be sure of that
这点我可以确定

unfortunately i can't
你可以讲中文吗

now he can be sure
现在他已经可以确定

i can't leave you
辦法離開你

and i can't decide.
我无法自己做出选择，

dana: but i can't help.
丹娜：但是我帮不上忙。

teacher, i can't get in
我的wifi很好

yes, you can say i can't be an archeologist.
是的，你可以说我成为不了一名考古学家。

i can't even name them all.
我甚至都叫不上它们的名字来。

he said, "i can't do it.
他说，“我恐怕没办法做到了。

i can't stop this from happening.
我不能够阻止这样的事情继续发生。

at this point he can be sure
此时的他可以确定

i said, "i can't, mr. president.
我说，”总统先生，我不能。

just to be sure
giusto per essere sicuri

i can't speak chinese english only
你不懂中文吗

but still, i'm sorry i can't be with you in person.
尽管如此，没能到现场，我很抱歉。

but you can't tell me, no, i can't be mowgli, because guess what?
但你不能告诉我，我不能成为莫格利，你猜是因为什么？

be sure your sin will find you out
天网恢恢，疏而不漏

you cannot be sure of anything.
你对任何事情都没有把握。

be sure you know what you're doing!
请确保您知道您在做什么 ！