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。

But it is difficult to do the research work in that the welding time is so short and the local welding field is close.

但是由于超声波塑料焊接具有时间短、局部焊接区域封闭等特点，使得对焊接温度场的研究很困难。

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。

With the development of science, modern medicine has made great progress in the treatment of condyloma, the method of many, the effect is still good, but it is difficult to do not recur.

随着科学的发展，现代医学有了很大的进步， 治疗尖锐湿疣的方法很多，效果也还是不错的，但很难做到不再复发。

Granted that in today's economy it is difficult to do so, but you always have options.

假定当下的经济再不景气，让人难以做出类似的抉择，但办法总比问题多。