difficult

But maybe they find science more difficult than you, or maths more difficult than you.

相比于你 可能他们会觉得科学更难 或者数学更难

They're extremely difficult to anaesthetise and difficult to operate on as well.

对他们进行麻醉极其困难 在他们身上动手术也很困难

You were a teenager who made a difficult choice in a difficult situation.

你当时是个青少年 面对困境 做了一个困难的决定

...this has been very, very difficult for me.

...这对我来说非常非常困难

And because of that, this is difficult for you.

也正因为如此 所以对你来说很难抉择

I think that I find it difficult to tell people difficult truths.

我觉得告诉别人 不好的事实这件事很难

My mother was a difficult woman and she made life difficult for a lot of people, including her children.

我的媽媽是個很能折騰的女人 她也讓生活變得很難 讓很多人的生活都變得艱難 包括她的孩子們

Because one of the reasons there's been a delay in a male contraceptive is the simple fact that the outer sperm membrane is, ironically, difficult, very, very difficult to penetrate.

男性避孕药 迟迟未现的原因之一 就是因为这一简单的事实 穿透*的细胞膜难于上青天

Able to compete at the highest levels of golf but for one thing; he has a rare circulatory problem in his leg that makes it very difficult for him to walk; not only difficult but dangerous.

顶尖水平的球手 但是 他的腿 患有一种罕见的循环系统疾病 造成他无法正常行走 甚至有危险

And that's why it's so, so difficult to detect these.

这就是为什么发现它们那么难