What you should do is pick one thing that has been proven to work, and make it work. The important thing is that you stay focused until you make it work.
而是说应该选一件被证明是可以完成的事,然后集中精力直到搞定它。
There is also something else you will need to make the solar water heater work -- the sun.
VOA: special.2009.04.20
Usually when you know why it's not working, it's obvious what you have to do to make it work.
通常你明白了出错的原因后,很明显你必须让程序正常运行起来。
but it's also very theoretical and they really make you think about the work you are doing.
但同时它也具有理论性,来帮助你思考你现在做的东西。
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