the officer said. "Nothing remains,General Lee, but to put your poor soldiers on their poor horses and send them home in time to plant the spring crops."

VOA: special.2009.12.17

If you put your fingers between the plastic opening at the bottom, and here's where you gotta watch out for the spring, pull the thing apart and that's it.

如果你把手指放到,底部的缝隙中间，这里你需要小心，你剥开就会发现这个了。

哈佛公开课 - 计算机科学课程节选