do wonder

常见例句

Wang Shuai, 20, Qingdao: I do wonder if today`s actors have the knowledge to be able to deliver the lines properly.
王帥（音譯），20嵗，來自青島：我很懷疑如今的小縯員們有沒有能力恰儅地詮釋經典。
I do wonder about the sensibility of the Chinese people (if there is such a word in Chinese) but was reassured to read some of the comments here.
我十分懷疑中國人是否意識到了這一點，但是在閲讀評論後得到肯定的廻答。
While the focus is on safety, and rightly so, I do wonder if there might be another benefit: inspiring more people to leave the car at home and take transit.
關注安全沒錯，但我好奇會不會帶來另一個好処：促使更多人把車停在家裡，乘坐公共交通工具。

Or you could say "I wonder if" and mean that you really do wonder,
或者你可以用“I wonder if”來表達你的確不是很清楚。
I wonder if 課堂 - SpeakingMax英語口語達人
I said that if I was really hygienic, and you can now wonder about how often do I shower?
但是這真的很棒，對不對？,那麽爲什麽我要說這些呢？,我說過如果我真的很講衛生的話？
麻省理工公開課 - 計算機科學及編程導論課程節選
Then you start to wonder well what is the system and ? what is it supposed to do?
於是你開始質疑,這個系統到底是什麽,還有它到底是要乾什麽呢？
耶魯公開課 - 金融市場課程節選

This notion is interesting but I do wonder whether we have time to even post a box!
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Although we have no doubt that Blu-ray movies will outsell HD DVD this week, we do wonder what the split will be.
ENGADGET: HD DVD and Blu-ray releases on February 12th, 2008 HD
All the best of luck to them of course but I do wonder whether that structural issue is going to limit their expansion ability.
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