我跑下楼越过他，把我的背包扔进他老旧的白色柴油梅赛德斯里，然后我看见：一个巨大、闪闪发光的彩旗贴纸。

I ran downstairs ahead of him to throw my backpack in his old white diesel Mercedes, and there it was: a big, glittery rainbow flag sticker.

youdao

我的背包丢了。

I lost my backpack.

youdao

没有扫描，没有搜查，我的背包里很容易就能装下那些奇怪的手榴弹或炭疽填充的午餐盒。

Unscanned, unsearched, my satchel could easily have held the odd grenade or an anthrax-stuffed lunchbox.

youdao

But don't worry about it, it's not, I'm just using it because it's a simpler example than the one I really want to get to, which is knapsack.

但是别担心，我讲这些是因为它比我,真正想讲的问题简单一些，我想讲的是背包问题。

麻省理工公开课 - 计算机科学及编程导论课程节选

So I haven't done magic, I've given you a really fast way to solve a knapsack problem, but it's still exponential deep down in its heart, in something.

所以我并没有施魔法，我已经告诉了你,一种快速解决背包问题的方法了,但是某些方面它的核心仍然是指数增长的。

麻省理工公开课 - 计算机科学及编程导论课程节选

So how long it takes to run is related to how many items I end up being able to fit into the knapsack.

所以，运行的时间是和我能够,装进背包的物品数目有关的。

麻省理工公开课 - 计算机科学及编程导论课程节选