Pratice economy will reach economical efficiency easily.
节俭就可以很容易地达到经济效益。
When you learn a language, you can watch some movie or TV show in this language to pratice it.
当你学一门语言的时候，你可以看一些这个语种的电影或者电视剧来练习。
Pratice shows that we can get good results in the urbanization evaluation of cities mainly with coal resource by local variable weight method.
实践表明在对煤炭资源型城市城市化评价时，采用局部权重法取得了良好的评价结果。
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