"Families have described to me good experiences, terrible experiences. It is patchy, it is inconsistent and what this investigation is about, is trying to find out the things that move us from poor and bad to good and excellent.
* Code should be simple and clean, never over-complicate things.
，详情可参考heLLoword翻译官方下载
if not self.file_exists:
"We will have the Earth out the window as a single ball, something none of us have seen in that perspective.