And for reference, incidentally, in case you ever forget what the point of some exercise was, I'll almost always comment the code up top with a quick sentence or two that reminds you what this program does.

顺便作为参考，为了避免我们可能忘记一些代码的意思，我通常会用一两个简单的句子,在上面作出注释,那样会提醒我们这个程序是干嘛的。

哈佛公开课 - 计算机科学课程节选

And then Woodward argued quite directly that the loss of the Vietnam War began to liberate the South, in a sense that the South, Southerners, white Southerners, were the only Americans other than we always forget Native Americans who had ever lost a war.

接着沃德沃直截了当地说,越南战争的损失开始导致南方的解放,因为从某种程度上说,南方人,南方白种人,是美国唯一除了印第安人之外,我们总忽略这些北美原住民,输掉过战争的人

耶鲁公开课 - 美国内战与重建课程节选