世界上的一些农村仍遭受着很多问题，如糟糕的道路条件，破旧的厕所，肮脏的环境，以及发展不完善的公共基础服务等。

Some villages in the world still suffer from problems such as poor road conditions, shabby toilets, dirty environment, and undeveloped basic public services.

youdao

我们需要知道它产生当时的物质条件，它如何运作和它如何会 ，而且这方面的知识已经由一些主流的马克思主义者最完善的提供。

We need toknow in what material conditions it arises, how it functions and how it mightfail, and this knowledge has been best provided by certain mainstream currentsof Marxism.

youdao

不要再等待完美(完美的时机，完善的条件)，有些事你知道其实很早之前就该做的。

Stop waiting for perfection (perfect timing, perfect conditions) before you do what you know you should have done long ago.

youdao

And the WHO had all those, had that whole infrastructure in place.

世界卫生组织拥有这一切条件,它有完善的基础设施

耶鲁公开课 - 生物医学工程探索课程节选

Is to say, okay now let's try to enrich the model, to add more into the model, and see if you get a different result, and if so why?

好吧,那我们就来完善这个模型吧,给这个模型加入新的约束条件,看看会不会得到不同的结果,如果是再分析原因

耶鲁公开课 - 博弈论课程节选