我想这里不知道有多长时间没有被清洁了，但我们会清理的。

I guess it hasn't been cleaned in I don't know how long, but we are going to clean it.

youdao

我的很多亲戚来到这里不知道太多的英语，但他们存活在日常生活中。

A lot of my relatives came here without knowing too much English and yet they survived in everyday life.

youdao

每位玩家按压骰子再走。谁的数字最大谁先走。这里不知道是啥意思。

The player who pops the highest number goes first. Play continues to the left of the starting player.

youdao

I don't know. It's at this point of a possible confusion, at least a momentary, provisional confusion, that we know that the poet has identified with the sun.

我不知道，这里有一点迷惑性，至少是一种瞬间而来的迷惑，我们知道作者认为自己等同于太阳。

耶鲁公开课 - 弥尔顿课程节选

I don't know where people find time to spend with their boyfriends here. So, yeah. I'm fine.

我不知道这里的人怎么找到时间跟男朋友相处。所以，是的，我一个人挺好。

有趣的留学生活 - SpeakingMax英语口语达人

I have no idea what's here at the moment so I'm just going to draw a question mark because that memory might have been used previously for some other purpose, but we know it's currently available to us so we have four bytes of memory.

我不知道在此刻这里是什么,所以我画一个问号，因为那块内存可能在之前,为其它的目的而使用过，但是我们知道它可以为我们所使用,这样我们就有4个字节的内存。

哈佛公开课 - 计算机科学课程节选