“听着，小灯芯，”木偶说，“你真的确定愚人国里没有学校吗？”

Listen, Lamp-Wick, said the Marionette, are you really sure that there are no schools in the Land of Toys?

youdao

当学生们去上课时，他们经常不确定他们是有机器人还是真的老师。

Often, students are not sure whether they have the android or the real teacher when they go to class.

youdao

把你的手给我，因为我想确定你真的还在这里。

Give me your hand, for I want to be sure that you are still here.

youdao

Are you sure you didn't want to do for i in range of list, rather than for i in list?

你真的打算这么做吗？你确定你不是,想在链表范围内定义i而不是定义链表i？

麻省理工公开课 - 计算机科学及编程导论课程节选

But I'm not sure that you can really make that assumption based on something that someone creates

但我不确定你真的能基于某人创作的某些作品来做那样的推断，

印象深刻的展示会 - SpeakingMax英语口语达人

I'm not sure whether this really should be called a coma.

我不确定这是否真的该被称作昏迷。

耶鲁公开课 - 死亡课程节选