And the reinvention in the nineteenth century of British identity will also have a lot to do with fear of the Irish, "The enemy within," As they were perceived.

十九世纪英国民认同感的重建,和对爱尔兰的惧怕也有很大关系,"家贼难防",他们是这样看待爱尔兰的

耶鲁公开课 - 欧洲文明课程节选

Yeah, but I think it's also an important skill. You need to be able to express what you know

难，但是我也觉得这是一种重要的技能。你必须能够把你知道的表达出来，

沟通很重要 - SpeakingMax英语口语达人

Just while we're doing that, I think the reputation of this class-- I think--if you look at the course evaluations online or whatever, is that this class is reasonably hard but reasonably fun.

收表的时候,我来说说这门课的名声,你们要是在网站上看了教学评估,就会发现这门课有点难但也很有趣

耶鲁公开课 - 博弈论课程节选

I think it's same here as well. It's quite hard to get jobs, especially in aerospace field.

我想这儿也一样。找到工作非常难，特别是在航天领域。

就业很难 - SpeakingMax英语口语达人

There's not really plural form of verbs in Korean, so then again it's also difficult.

韩语中真地没有动词复数形式，所以这一点也比较难。

韩国人经常犯的失误 - SpeakingMax英语口语达人

the work doesn't seem to be that much more difficult from what's at other universities.

功课也没有比别的大学难很多。

对于赞助入学的看法 - SpeakingMax英语口语达人

I know that the neighborhood has been getting rough. The crime has been increasing.

我知道街坊们越来越难打交道了，犯罪率也在上升。

That's why 实战 - SpeakingMax英语口语达人

Finally this may be news to you, but this is not English 10A or Math 55, meaning you'll not have to read as much as you will read for 10A or for a history class, and this class is not as difficult as Math 55 so you rest.

最后这个可能对你们来说有些新，但这不是10A号英语课和55号数学课，也就是说你不用像10A号课或者历史课那样做大量的阅读，也不像55号数学课一样难，所以你们可以轻松些。

哈佛公开课 - 幸福课课程节选