That doesn't mean it is SELF sustained.

來源: 於 2018-01-23 14:22:09 [舊帖] [給我悄悄話] 本文已被閱讀：次

If it is not self sustained, the operation posts a great risk in the long run. I am an engineer myself and I made my conclusion based on my experience as an engineer, not a hot-headed political zealot.