I should know by now not to throw away the directions until we've finished cooking.

我现在应该明白，饭没做完之前，不要把食谱扔掉。

《柯林斯英汉双解大词典》

Is there anything else I should know?

还有其他我需要知道的信息么？

youdao

I should know her among a thousand.

她在千百人中，我也会认识她。

youdao

COSTELLO: "You gonna be the coach,too?" ABBOTT: "Yes." COSTELLO: "And you don't know the fellows' names?" ABBOTT: " Well,I should." COSTELLO: "Well,then, who's on first?"

VOA: special.2009.03.09

Right, I've forgotten your name, I should know it by now.

正确,我忘了你的名字,我应该知道

耶鲁公开课 - 博弈论课程节选

You know like, I should know about restaurants more,

我好像应该很了解餐厅，

唐人街的美食 - SpeakingMax英语口语达人

MRS. OBAMA: Oh, gosh, that's a very good question, and I should know.

WHITEHOUSE: The White House

Never mind, I have got to learn and I should know better - but it is ridiculous.

BBC: FA charges Blackpool manager Ian Holloway

"When he did call he said I should know one thing: I'd have to bring it up from the bottom of a lake, " he says.

FORBES: Barnstormer