And three years ago, the flu vaccine was only 19 percent effective.

三年之前，疫苗有效只有19%。

And it's not a more efficient sleep, not like they're compressing relatively more value out of their hours.

而这并非是更有效睡眠，并不是他们从自己时内挤出更多价值来。

Jean Liu: You know, in a very difficult road situation there'straffic control, you know, there's one-way situation, you know, the closest car may not be the most efficient one.

当路况复杂时候就会有交通管制，就会出现单行道情况，在那种情况下，最近车能就不是最有效。

You know, I like the way you have efficiently folded this tab under. See in a tape emergency you could shave valuable seconds off your time.

莫妮卡，我很欣赏你有效把胶带一端折起来。你看，急需用胶带时候，省下好几秒宝贵时。

In a future video I'm going to show you how you can make shadowing much more efficient using some computer software that you can download for free.

在之后影片当中，我会示范给你看，怎么更有效作跟读法，用一些你免费下载电脑软体就。

The CDC says the vaccine is typically between 40 and 60 percent effective at that.

CDC表示，这种疫苗预防流感有效通常有40%到60%。

When it comes to exam preparation, it's ideal to identify what type of learner you are; by doing so, you can find the most effective way to study.

为考试复习时候，最好方法是认清自己是哪一类学习者；只有这样，你才能找到最有效学习方式。

You’ll also need to learn how to get proper rest in order to work efficiently. Deep healthy sleep increases brain’s strength margin and contributes to attention focusing.

你也需要解如何适当休息，来让工作有效。深层健康睡眠有助于使大脑强壮，而且对注意力集中有帮助。

Our efficient new machines are cheaper than old ones.

我们有效新设备成本比旧便宜。

I'm also the author of a book called 10 Steps to Earning Awesome Grades, and I'm the creator of a YouTube channel that's all about becoming a more effective student.

我还写一本书，叫做《取得好成绩十个步骤》，而且我还是一个 YouTube 频道创始人，这个频道是关于如何成为一个更有效学生。

The treatment using a full dose for both was found to be 62 percent effective.

两次接种完整剂量有效为62%。

There are teams of innovators right now in the field that are working on figuring out how to most efficiently and effectively tap this enormous heat source beneath us.

现在有些创新团队在实地努力想办法用最有效和效益方式开采我们脚下这个巨大热能来源。

And certain techniques to make the process more efficient shaped the style of the cartoons.

让这过程更有效特定方法则形塑卡通样貌。

This keeps your center of gravity directly over your base of support, which allows you to move efficiently with the least amount of fatigue and muscle strain.

这让你重心正好在你支撑面正上方，让你能够更有效移动，同时减少肌肉绷紧与疲劳。

Plant roots are thus the most efficient systems known for underground exploration.

因此植物根说是地下勘探中最有效系统。

You know, we could be doing more efficient things.

你知道，我们做更有效事情。

Measles vaccines normally have an effectiveness rate of 85 percent.

麻疹疫苗有效通常为85%。

Probabaly the most effective way of communicating an idea is through stories.

最有效沟通方法大概就是通过故事。

It is 78 percent effective among those younger than 60.

该疫苗对60岁下人群有效为78%。

Blue light is very efficient, so we have these tunable 24-bit LED lighting fixtures.

蓝光是很有效，所我们做出调节24位LED灯固定装置。