barrier

"Barrier" 的词根是 "barr"，这个词根在拉丁语中表示“栅栏，障碍”，例如在 "barricade" (路障)当中也可以看到这个词根。

["n. 障碍物，屏障；界线\n vt. 把……关入栅栏\n n. （Barrier）（法）巴里耶（人名）\n \n [\n 复数\n barriers\n ]"]

I realized I had to surmount the language barrier.

我认识到我必须得克服语言障碍。

The Yangtze river is a natural barrier to the north-east.

长江是东北方向的一道天然屏障。

Ozone is the earth's barrier against ultra-violet radiation.

臭氧是地球防止紫外线辐射的屏障。

你可以把这个单词联想到一堵墙，因为墙本身就是一个屏障，这样可以帮助你记住这个单词。

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And when they're missing,it's a barrier.Arm amputation is usually caused by trauma,

But I am against using itas a barrier.Do we really want to end up with 600 languages

which turned it into an interface, a common ground,instead of a barrier.And all of a sudden, children were drawing together,

viruses mutate, our drugs don't.The second barrier: adherence.It's really hard to get these drugs to those who need the most.

and produces large and tangible benefits.Now, that's one barrier.I actually think the more profound barrier

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