I Say At Last 我说终于
Now you say you both left at ten—that's a contradiction of your last statement.
你现在说你们俩是十点钟离开的,这可和你上次的说法不一致。
But he could "rightfully say that he was greatly thrilled" to find himself, at last, floating.
但是,他却可以“义正辞严的辩称这是自己为能在空中漂浮而万分激动使然。”
But my guests called at the last minute to say they couldn't come.
可是,我请的客人到最后一分钟打电话来,说他们来不了了。我真是白费工夫。
"Safety and security of our volunteers is absolutely our top priority and we are continually looking at this topic and I have to say that in the last few years we have done an amazing amount of work to try to improve both our systems to support volunteers, to ensure confidentiality and to strengthen their preparedness and training."
VOA: special.2011.03.28
So if you think about the way something like, say, Mapquest works, and last week in recitation you looked at the fact that shortest path is exponential.
所以如果你想想电子地图,还有上周学的列举法,你就会发现一般最简单的方法,都是指数递增的。
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