中国人从中东获得了一种蓝色颜料，这是一种当时在中国很难得到的纯净的氧化钴，这种颜料只含有少量的锰。
From the Middle East the Chinese acquired a blue pigment—a purified form of cobalt oxide unobtainable at that time in China—that contained only a low level of manganese.
三维弹性问题的解析解是很难得到的。
Analytical solutions for three dimensional elasticity problems are quite difficult to obtain.
由于它大部分都不受监管，可靠的统计数据是很难得到的。
Since it is largely unregulated, reliable statistics are hard to come by.
我们想要高兴，但是我们却认为那是挣来的，应得的，很难得到的。
We want to be happy, but we think it should be earned or deserved or hard to come by.
世界上用得最普遍的名词是朋友，但是最难得到的也是朋友。——法国。
The most common noun used in the world are friends, but the hardest thing to get is a friend.
可以是一间更好的办公室，一个很难得到的停车位，一个靠窗的座位，或者一台新电脑。
It can be a nicer office, a hard-to-get parking space, a seat next to a window or a new computer.
他们从好书中不但得到乐趣，而且受到很多教益，他们从中获得的那种精神食粮，从其它地方是很难得到的。
From good books, moreover, they draw much besides entertainment. They gain mental food such as few companions can supply.
过去，健康专家曾警告我们，即使是肺部感染或严重的咽喉痛等常见疾病，有一天也会很难得到医疗护理。
In the past, health experts warned us that the day would come in which it would become very difficult to provide medical care for even common problems such as lung infection or severe sour throat.
过去，健康专家曾警告我们，有一天，即使是肺部感染或严重的咽喉痛等常见疾病，也会很难得到医疗服务。
In the past, health experts warned us that the day would come in which it would become very difficult to provide medical care for even common problems, such as lung infection or severe sore throat.
从那以后，他觉得自己发现了一件神奇的事：要让一个男孩想要什么东西，你只需要让那个东西变得很难得到！
He thinks he has discovered something wonderful since then: to make a boy want something, all you have to do is make that something hard to get!
像天花这种东西很难得到但是其他的有机体也可能会变得很危险。
Something like smallpox is hard to get, but there are other organisms that could become harmful.
作为欧盟居民的法国人可以没有任何官方登记即可搬到英国去，所以明确的数目很难得到。
Firm Numbers are hard to come by; as European Union (EU) citizens, the French can move to Britain without registering with any authority.
他们能接受的教育也非常有限，因此很难得到改善生活的机会。
Access to education is also very limited, and therefore they have very little opportunity to improve themselves.
虽然可以说冥王星是公众最喜爱的行星体之一，但是因为那个世界非常小又非常遥远，它也是最难得到精细肖像的行星。
Though Pluto is arguably one of the public's favorite planetary objects, it is also the hardest of which to get a detailed portrait because the world is small and very far away.
在这么远的地方摔断了胳膊或腿将会很难得到帮助，但是更重要的是，他想有尊严地走进这个山谷。
A broken ankle or leg would be a serious thing this far from help, but it was more than that. He wanted to enter the gorge respectfully.
但是，贷款人很难得到贷款的比例在继续增长(见图表)。
But the percentage of would-be borrowers finding loans hard to get continues to grow (see chart).
如果不付出这样的努力，将很难得到与你想要和期望的所相匹配的结果。
If you don't take this effort, it will be very difficult to obtain the results that match what you want and expect.
这些词很难得到排名也不能给你带来高质量的流量，把精力集中在那些相关的，但又不是特别通用的词上。
These words are incredibly difficult to rank for and won't drive qualified traffic to your site. Focus on words that are relevant, but not overly used.
这一修正案会让女性在需要健康咨询和建议时更难得到恰当的建议。
This could make it harder for women to get proper health advice and counselling when they need it most.
我们很难得到一个准确的数字，更不要说全球的新用户还在不断的快速增加。
But exact Numbers are hard to come by, not least because of the continued rapid growth in the global number of subscribers.
全球的统计数据很难得到，但是至少在美国，畜牧业造成的影响占到到水土流失的55%，杀虫剂使用的37%。
Global statistics are hard to come by, but in the us at least, livestock account for 55 per cent of soil erosion and 37 per cent of pesticide use.
但首相的幸运之处在于，对约翰逊的支持和信赖在短期内很难得到验证。
Fortunately for the prime minister, this faith in Mr Johnson is unlikely to be tested soon.
尽管进行了相关的工作，但SOA的业务价值将很难得到业务涉众的认可。
When all is said and done, the business value of SOA would be hard to justify to business stakeholders.
您说使用电子设备和读书做家务是不一样的，这让孩子更难得到父母的关注。
You say that using electronic gadgets is different than reading a book or doing chores; it’s harder for kids to get parents’ attention.
无论具有适应性的青少年的这种观点是多么正确，都很难得到认同——父母们处理青少年那些特别恼人、执拗或绝对令人恐慌的时刻越多就越如此。
This adaptive-adolescence view, however accurate, can be tricky to come to terms with—the more so for parents dealing with teens in their most trying, contrary, or flat-out scary moments.
但是，这是情有可原的，因为它们很难得到精确的结果。这种度量涉及许多有意思的问题(比如缓存的影响)，所以适合作为示例。
But the measurements here redeem themselves because they are tricky to do accurately, and because the many interesting issues that arise (such as cache effects) make them a good example.
您说使用电子设备和读书做家务是不一样的，这让孩子更难得到父母的关注。
You say that using electronic gadgets is different than reading a book or doing chores; it's harder for kids to get parents' attention.
您说使用电子设备和读书做家务是不一样的，这让孩子更难得到父母的关注。
You say that using electronic gadgets is different than reading a book or doing chores; it's harder for kids to get parents' attention.
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