Perhaps around 25. No, let's say 30 to be sure.

可能25人左右。不，准确说是30人。

To be sure, there is much in this world that rightly troubles us. But there's even more that gives us cause for hope.

可以定是，在这个世界上有很多东西正困扰着我们。但是还有更多让我们看到希因。

Americans need to be sure of outcomes if we are going to become engaged in any kind of war, explained independent pollster John Zogby.

如果我们要介入任何形式战争美国人需要一定结果。独立民意测验专家约翰·佐格比解释道。

Um, you want to be sure to say picture esque, right, and not picture squee.

你务必要确保说对，是 picture esque，没错，而不是 picture squee。

Now, to be sure, there are differences.

现在，当然，会有差异。

Better button it up. Just to be sure.

扣好扣子。只是可以定。

To be sure that did seem as if he admired her indeed I rather believe he did I heard something about it but I hardly know what something about Mr. Robinson.

看起来，他是真爱上她呢我确相信他是真我听到了一些话可是我弄不清究竟我听到了一些有关鲁宾逊先生话。”

What they want to be sure of is getting value for money, and we're succeeding by offering high-quality products that don't cost the earth.

他们想要确保是物有所值，我们成功是依赖提供物美价廉高质量产。

To be sure, he performs an impressive variety of interesting compositions, but it is not necessary for me to visit Avery Fisher Hall, or anywhere else, to hear interesting orchestral music.

但是我能确定是，他能表现出很多有趣乐章，但是我却应该不会去Avery Fisher Hall或者其他地方去听一场有趣交响乐演出。

What a splendid we spiffing fellow he is to be sure!

他是一个多么迷人家伙啊！

To be sure, he thought he had nothing to risk in his own person, but yet, he would prefer sending somebody else, to bring him intelligence about the weavers and their work, before he troubled himself in the affair.

他相信他自己是用不着害怕。虽然如此，为了让自己安心，他还是觉得先派一个人去看看比较妥当。

But we need to be sure we're the only ones doing it.

但是我们要确保我们是唯一一组这么做。

You know the platform you've created is really important. Now my son Charlie who's 13 is dedicated to Instagram so... he'd want to be sure I mentioned him while I was here with, with you.

你知道吗，你创建这个平台非常重要。现在，我13岁儿子查理是Instagram重度用户，所以… … 他希我在见到你时候能够提起他。

But to be sure, in order for this to work.the other person's gaze must be within you line of sight, your field of vision that is you can see them.

但是，这里要说清楚，为人使这种方法有效，其他人凝视你目光必须在你视线之内，也就是你视野之内你能看到他们（盯着你）。

To be sure, this mantra was eventually phased out as Facebook's motto, but it remains very much a prevailing ethos that animates today's tech ecosystem.

后来脸书逐渐淘汰了这句口号，但它仍然激励着现在技术产业。

Something cool or interesting might be happening somewhere, Rob, and I want to be sure I catch it, so I have to keep checking my phone, to make sure, you know, I don't miss out on anything.

有些很酷或有趣事情可能在某个地方发生，罗伯，我想确保我能知晓它，所以我得一直查看我手机，来确保这一点，你知道，我从不错过任何事情。

Check to be sure that the library and computer facilities are top-notch.

检查以确保图书馆和计算机设施是一流。

When you're planning the basic structure, do you like to go away to be sure that you're by yourself?

当你在构思作基本结构时，你是否要到别处，确保自己是独处？

Hmm. Id have to see how much there is to be sure.

嗯，我需要看看资料数量才能确定。

Now, to be sure, there are places that do things differently.

可以定，美国教育有一些不同地方。