So, it is hard to use these prevention methods well.

因此，很难用好这些预防方法。

They're not really academic and they're pretty hard to use correctly.

它们不是很学术化，而且很难正确使用。

We also have to remember that cryptocurrencies are really hard to use for normal people.

我们还必须记住，加密货币对普通人来说真的很难使用。

And it's pretty hard. And it's pretty hard to get used to doing that.

这很困难。 要习惯这样做是很困难的。

But smart phones are definitely a little smarter, but they actually are harder to use. They're really complicated.

智能手机确实更智能一些，不过它们实际上更难以使用。非常的繁琐。

In 1994, nobody was making any real money from the Internet which was still very slow and hard to use.

1994年时还没有人能真正从网络中挣到钱，因为那时的网络还很慢，也很难用。

This keyboard is so hard to use.

Leslie：这个键盘太难用了。

Cameras were heavy, cumbersome, hard to use.

相机很重，很笨重，很难使用。

So, learn it; it's not hard to use.

所以，学习吧；它不难使用。

Theoretical grammatical explanations are hard to understand, hard to remember, and even harder to use.

理论上的语法解释难于理解，难于记忆，更难于使用。

In 1994, nobody was making any real money from the Internet which was still very slow and hard to use. 1994

年，互联网发展缓慢，难以使用，所以没有人能通过互联网挣钱。

I recognize that, yeah, they probably will help your score, but just keep in mind that they're pretty hard to use.

我知道，它们可能对你的分数有帮助，但要记住，它们很难用。

It's very hard to use logic and symbolic thinking to have an accurate model of the world.

- 使用逻辑和符号思维来建立准确的世界模型是非常困难的。

I know it sounds mechanical and it might be hard to use, but play with me for a second.

“我知道这听起来很机械， 而且可能很难使用， 但请和我一起玩一会。

And when your brain's resources are focused on distractions, it's much harder to use those resources to access whatever's stored in your memory.

当你的大脑资源集中在分心的事情上时，就很难利用这些资源来访问存储在你记忆中的东西。

But in the past, these network connections were hard to use. Because Oliver's network was hidden from view. Charles couldn't see who Oliver knew.

但这些人脉以往很难发挥作用。因为奥利弗的人脉是隐性的，克莱尔不知道奥利弗都认识些什么人。

The men soon make new friends at work, but wives tend to find it much harder to get used to a different way of life.

男人们很快就会在工作中结交新朋友，但妻子们往往会发现要适应不同的生活方式要困难得多。

And if there's no context and the words are not connected, it's really hard to use them and to remember them, and to use them in your speaking.

如果没有上下文，单词没有联系，就很难使用和记住它们，也很难在你说话时使用它们。

Now when it comes to subjects that aren't easily studied through flash cards – like math or even a sport like skateboarding – it's harder to use a rigid spaced repetition algorithm.

现在，当涉及到那些不容易通过抽认卡进行学习的科目时——比如数学，甚至像滑板这样的运动——使用严格的间隔重复算法就比较困难了。

And some of them, such as monoclonal antibodies, are fluids that have to be infused or injected into your body, so they're hard to use in poorer countries without a lot of medical clinics.

其中如单克隆抗体等药物，是必须输入或注射到体内的液体，因此缺少大量诊所的较贫困国家很难使用。