The notice said 'Keep Out'.

告示上写着“禁止入内”。

《牛津词典》

If we keep perfectly still, maybe they won't notice us at all.

如果我们一动也不动，也许他们根本就不会注意到我们。

youdao

You have to try to take no notice of them and keep working.

你必须尽量不去理会他们，继续工作。

youdao

I then assign thankful true, if so, but notice this little trick: -- I'm going to keep doing this while I am bang thankful -- bang exclamation point means "not," so this is shorthand, sort of clever elegant notation for "while I'm not thankful, keep doing this."

然后我给thankful赋true值，如果是这样，注意这里有个小技巧：,我将一直这样做，当我用满意时-,感叹号在这里的意思是“非“，这是一个可速记的，有几分机灵优雅的符号,用来说明：“当我不满意，保持这样做“

哈佛公开课 - 计算机科学课程节选

Keep this notice for your records.

FORBES: Bogus IRS Email Turns More Sophisticated

If you'd rather listen to your iPod anyway, you'll never notice so keep reading.

ENGADGET: Phone Shopping�� Monday? N-Gage QD

Many sites will throw in a reminder notice to keep track of important holidays.

FORBES: E-sentiments, exactly