I think so. But video phone has been very hard to achieve. It's either been to be expensive, or too crowded, or can we use the internet to finally introduce video phone and this is different from video on-demand.

我也这么认为，但视频电话要成功很困难,它要么很贵，要么很拥堵，或者我们是否可以使用互联网引入视频电话,这与随需视频是不同的。

麻省理工公开课 - 媒体、教育、市场课程节选

We usually use this pattern when the question that you're asking about relates directly to the person you're speaking with.

当你在询问与谈话对方直接有关的话题时，你可以使用这个句型。

Do you 课堂 - SpeakingMax英语口语达人

You can use this in social setting, business setting, casual or formal, whatever.

你可以在社交场合与商务场合使用这个句型，不管是随意或是正式的场合都适用。

I want to 课堂 - SpeakingMax英语口语达人

if something seems good or bad or whatever.

表示事情的好与坏，或在其他情况下，都可以使用。

It seems 课堂 - SpeakingMax英语口语达人

I'm using, here, antigen interchangeably with vaccine for our purposes today.

在这里,我使用可以,与疫苗相互作用的抗原来介绍今天的问题

耶鲁公开课 - 生物医学工程探索课程节选

or you can use an "I don't think" question, which, of course, is very similar, only in the negative version of the "I think" question.

当然，你也可以使用“I don't think”的句型，它与“I think”句型十分类似，只不过是以否定句的形式表示。

I think 课堂 - SpeakingMax英语口语达人