不断的反馈和改善：在每一次迭代的末尾，我们总是回顾我们以前是怎么做的，并且思考我们下次可以做哪些不同的事来改善流程。
Continuous feedback and improvement: at the end of an iteration of work, we always look back at how we did and figure out what we can do differently next time to improve.
我们还需要为一些Android平台的开源项目的开发者支付报酬，以不断的改善这个平台，这样我们就可以提供更好及更安全的经验。
We get to pay developers of open source projects on the Android platform as well, to work on improving it so we can deliver a better and more secure experience.
我们的国家也许从来就不完美，但一代又一代人已经证明我们的国家可以不断被改善。
Our country may be never perfect, but generation after generation has shown that our country can be improved continuously.
我们的国家也许从来就不完美，但一代又一代人已经证明我们的国家可以不断被改善。
Our country may never be perfect, but generation after generation has proved that our country can be improved.
我们的国家也许从来就不完美，但一代又一代人已经证明我们的国家可以不断被改善。
Our country may never be perfect, but generation after generation has shown that our country can be improved.
我们的国家也许从来就不完美，但一代又一代人已经证实我们的国家可以不断被改善。
This union may never be perfect, but generation after generation has shown that it can always be perfected.
我们也可以收费，但是前提是我们提供的服务可以不断得到改善，提高。
We can charge money but we need to make sure our services can be good enough to have scable and sustanable revenue.
我们也可以收费，但是前提是我们提供的服务可以不断得到改善，提高。
We can charge money but we need to make sure our services can be good enough to have scable and sustanable revenue.
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