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1·I know that my own it is difficult to do, so I rarely promise.

我知道我自己很难做到，所以我很少承诺。

2·Actually, it is difficult to do. Proper manners should be adopted.

其实这点是很不容易做到，主要是要讲究方式，大多数的时候我会采取一种委婉的语气，建议他“这样是不是会更好”，这样让他有一个从考虑到最后接纳的过程。

3·Needless to say it is difficult to do work when you are hungry.

不用说，空着肚子劳动是很难的。

4·Without knowing the customer's business drivers, it is difficult to do it.

不知道客户的业务驱动力，就很难做到这一点。

5·Past experience indicates that it is difficult to do well in this course if you do not attend class on a regular basis.

如果你不持续的上课，过去经验指出你很难把这堂课学好。

6·Boosting exports is a tried and true way of escaping recession. Unfortunately, it is difficult to do when the entire world is Mired in a simultaneous slump.

促进出口是一条屡试不爽的避免衰退的途径。不幸的是，当整个世界陷于同时下滑的泥潭时，这条路却并不好走。

7·Owing to the root-knot nematode is so small, can not be cultured, has a long generation, it is difficult to do research in vitro in interaction with the host.

由于根结线虫体积小，不能人工培养，世代长等难于进行体外与宿主的相互作用方面的研究，进展一直很缓慢。

8·Results It is difficult to do quarantine and inspection to every baggage, so the missing rate of inspection is very high, the effective apparatus is necessary and important.

结果针对新形势下旅客携带物检疫查验查获困难、漏检率高的现状，口岸旅检工作者需通过加强宣传、提高硬件设备配置等措施。

9·The successful information communication in the articles can raise the readers 'reading interests, but it is difficult to do this for the scientific and technological articles.

文章中成功的信息传达会激起读者的阅读兴趣，但是对于科技文章来说却难以达到这一点。

10·Everything else that we accomplished stems from achieving that partnership, because if you don't have a customer who perceives you as valuable, then it is difficult to do the things you want to do.

所有其它我们获得的成功都来自于那种伙伴关系的实现，因为如果一旦你没有认为你很有价值的客户，那么你就很难做到你想做的事情。