I do not know the answer to a question
我不知道这个问题的答案 (wo bu zhidao zhege wenti de daan)
"I don't know what time the movie starts. Your guess is as good as mine."
"我不知道电影什么时候开始。你的猜测和我的一样好。" (wo bu zhidao dianying shenme shihou kaishi nide caice he wo de yiyang hao)
a summary or concise statement of an argument or case
to keep an activity or process going
A victory won at too great a cost to be worthwhile.
intelligence or brainpower
To know something very well
to become very excited or angry