你生活应该有目标， 否则你的精力就会被浪 费掉。

You had better have an aim in life, or your energies will all be wasted.

youdao

我不需要太大的空间，多余的空间会浪费掉暖气费和空调费。

I don't need that much space, and more space costs more to heat and cool.

youdao

如果要做到这点，你必须要清楚了解：从现实角度来说，什么才是你有能力做到的。 当然，要了解清楚是要费掉你点功夫的。

In order to do so, you must get in touch with what you are truly capable of doing in realistic terms, and this takes effort.

youdao