This is provided by the surrounding skull and three tough membranes called meninges.
它被包围着的颅骨和三层坚韧的细胞膜被称作脑（脊）膜保护着。
Last night, while travelling home on the underground, I saw three tough guys enter my almost empty carriage.
昨晚乘地铁回家时，我看见三个粗暴的家伙走进我坐的车厢，几乎是空的。
As a high school girl, Tracy had been rejected countless times because of her poor English. After three tough months, she finally landed a job as a cookie-seller, pushing trolleys2 in a restaurant.
高中女生，英文不好，她遭到了数不清的拒绝，三个月后才好不容易找到一个在酒楼里推车卖茶点的工作。
There were never more than three or four pupils in his class, so he had a tough time bunking off without being noticed.
他班里的同学从来没有超过三到四个，所以他不可能做到逃学不引起别人注意。
Mr. Cilic "played three five-set matches and made it so tough for me and fought until the end."
西里奇说“打了三场都是五局的比赛让我有点吃不消，我会战斗到最后。”
From Barbie dolls programmed to say "math class is tough" to ministers of state who will parse and analyse a sentence but refuse to answer "what's half of three-quarters?", maths-phobia is everywhere.
从一个通过编程说出“数学课很难”的芭比娃娃到一个能够分析句子语法但拒绝回答“四分之三的一半是多少”的首相，数学恐惧症在生活中处处可见。
We've hired three young journalists, but it's tough to say whether these jobs would show up in educational services or in journalism.
我们已经雇佣了三位年轻的记者，但是还很难说这些工作是否会在教育服务或者新闻业中出现。
Miami's Big Three is too tough for Philly to last more than five games, at most.
热火三巨头对他们来说实在太强了，费城人最多能撑到第五场。
Travel agents, hotels and airlines have faced tough times, with visitor arrivals to the Asia-Pacific region falling nearly three percent in late 2008.
2008年下半年，到达亚太地区的航空游客数量减少了约三个百分点，旅行社、酒店和航空公司的日子都很不好过。
And though I was never short on confidence, my first week at college in the fall of 1953 was a tough one. I was so homesick that my mother had to drive three hours to the Amherst campus to see me.
虽然我从来都很自信，1953年秋在大学的第一周我还是非常难过，我太想家了，妈妈只好专门开车三小时到阿莫·斯特校区来看我。
Because most of us have a tough time with all three, I wanted to share what each component means along with a simple exercise from the book to develop each one.
因为我们大多都不熟悉它们，为阐述每个部分，我要分享书中的简单练习。
Sweeping statements about the size and growth of the Internet are tough to swallow. So here are three highlights from the new McKinsey report
对互联网规模及涨势的笼统陈述很难理解，所以在此列出麦肯锡新报告中的三个重点
It can be very tough for a lot of people, especially those who haven't interviewed for two or three years since they went through the process to get their last job.
这对许多人来说都很艰难，尤其是对那些两三年里没有换过工作的人，他们最近一次面试还是在获得那份工作的时候。
Along this narrow littoral, a century ago, the Tekke Turcomans had grazed their camels and tough Argamak horses, and tilled the soil around forty-three earthen fortresses.
一个世纪之前，在这个滨海地区的沿岸，提基亚土库曼人用泥土建立起43个堡垒，他们在周围放牧骆驼和凶悍的阿葛马克马，并耕种土地。
Facing a tough job market, many graduates like Zhang choose to do long-term internships, usually between three months and a year in length, in an effort to gain workplace experience and skills.
面临着严峻的就业形势，包括张泽在内的许多毕业生都会选择从事三个月到一年的长期实习工作，为的是积累工作经验和职场技能。
When facing trial and pain, Paul not only comforted him, but also Shared "tough love" with him, encouraging him to serve the Lord even better by using three examples.
在遭遇试炼痛苦时，保罗不但安慰他，更和他分享“严的爱”，用三个榜样来激励他更好地服事神。
Ice baths are tough. It takes about three minutes for the legs to go numb, so you're in the worst pain for all that time.
洗冰块澡其实也需要忍耐力的，三分钟腿就失去知觉了，所以洗澡期间痛苦降到了最低。
They had their big three with Parish, McHale and Larry Bird and it was just extremely tough to win a game in that building.
他们拥有三巨头帕里什、麦克海尔、伯德，他们在自己的主场打得很塔夫，他们太想赢球了。
That four have gone from start to finish in just three years shows just how tough times have become.
那四个航空公司在三年内草草结束便证明了此观点。
There are three types demotic spirit in his art world: tough life spirit, comfortable exist mode and the prize of individual life.
他的艺术世界所体现的人民精神主要有三类：温厚坚韧的生命精神、自在的生命追求以及对个体生命的珍视。
The last three away matches have been significant, with Milan losing at Lecce after returning from a tough trip to Lyon in the Champions League but then gaining maximum points from Messina and Parma.
过去的三场客场比赛战绩出色，米兰在经历了客场与里昂的冠军联赛鏖战之后负于莱切，但是随后在对梅西纳和帕尔马的比赛中一分未失。
They gave certain students a tough quiz, which involved finding one word that links three seemingly unrelated words.
他们给某些学生进行一次有难度的测试，其中包括找出一个连接三个看似无关的词语。
Although the DE - pression is a detailed exploration area, tough problems of fault interpretation remain in the area where three-dimensional seismic exploration has not been conducted yet.
该区勘探程度虽然较高，但在未作三维勘探的地区，断层的解释仍然存在许多问题。
For a Chinese mother, the first hour is the easy part. It's hours two and three that get tough.
对于中国妈妈来说，一个小时算轻松的，两三个小时才算得上严。
For a Chinese mother, the first hour is the easy part. It's hours two and three that get tough.
对于中国妈妈来说，一个小时算轻松的，两三个小时才算得上严。
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