sure about

基本解釋

I'm not so sure about this anymore, however.
然而，我現(xiàn)在對(duì)此并不是那么肯定了。
But the traffic worries me! I’m not sure about cycling in such heavy traffic.
但是交通使我擔(dān)心！在這么擁擠的車輛中騎自行車我不太肯定。
edu.sina.com.cn
But I'm not sure about the U.S. My impression is that they are quite behind on food awareness.
但我不敢肯定我對(duì)美國的印象是，他們是有相當(dāng)?shù)谋澈髮?duì)糧食的認(rèn)識(shí)。

The spokeswoman says if you get an e-mail you are not sure about, forward it or send a separate message to ContactETS@ets.org.
But then we went a little further, we considered those other cases and people weren't so sure about consequentialist moral reasoning.
但隨著談?wù)摰纳钊?，我們發(fā)現(xiàn)在其他情況中,人們不再對(duì)后果主義道德推理那么確定了。
耶魯公開課 - 公正課程節(jié)選
I'm not sure about the other schools, but I know FIT, we get in free.
我不確定其他學(xué)校的情況，但是我知道FIT的學(xué)生可以免費(fèi)進(jìn)去。
學(xué)生們的藝術(shù)熱情 - SpeakingMax英語口語達(dá)人

But Wall Street isn't so sure about future sales growth, at least in the short term.
FORBES: Harley-Davidson Dazzles Wall Street