不要装知道，不懂就请教。

Don't pretend to know, do not know to ask.

youdao

不知道怎么的，我忘记把装衣服的手提箱放哪儿了。

Somehow the suitcase with my clothes was misplaced.

《柯林斯英汉双解大词典》

我不知道桶里装的是什么，也从没想过要喝酒。

I didn't know what came in a keg and had never contemplated drinking.

youdao

As soon as the available size goes to 0, I know I can't enter any more items into the memo, right?

一旦可装大小为0时我就知道,我不能再在memo中添加物品了？

麻省理工公开课 - 计算机科学及编程导论课程节选

Orson Welles I should say the Orson Welles character has also faked his death, so no one except his immediate conspirators knows he's still alive.

另外,这个角色还装死，只有其同谋,知道他仍然活着。

耶鲁公开课 - 政治哲学导论课程节选

It's mock aggression in the sense that when people laugh they're often teasing, kidding around.

我们知道打闹是装出来的，因为人一笑,我们就知道他们是闹着玩的。

耶鲁公开课 - 心理学导论课程节选