Let's now go back and instantiate these ideas for the knapsack problem we looked at last time in particular, for the 0-1 knapsack problem.
让我们回来用具体例子，来说明我们上次看过的背包问题，特别是对0 - 1背包问题来说。
Hard times may hold you down at what usually seems like the most inopportune time, but you should remember that they won't last forever.
困难时期可能总在最不合时宜的时候阻碍你，但请相信，这样的时刻不会一直持续下去。
Another time, he cancelled a date with his girlfriend at the last minute telling her he had to get a new battery for his truck.
还有一次，他在约会前的最后一刻取消了约会，跟女朋友说他得给卡车换一块新电池。
The last paragraph contains an anachronism. The Holy Office no longer existed at that time.
最后一段有一个年代错误。宗教裁判所那时已不复存在了。
Students studying for a particular degree will take a series of lecture courses which run in parallel at a fixed time in each week and may last one academic term or the whole year.
攻读特定学位的学生将在每周的固定时间同时参加一系列讲座课程，可能持续一个学期或一整年。
You program the clock with the latest time at which you want to be wakened, and it then duly wakes you during the last light sleep phase before that.
你给时钟设定了你想要醒来的最晚时间，然后它会在之前的浅睡眠阶段按时叫醒你。
It's been a long time since we met in Beijing last summer holiday, and I am eager to hear about your life and study at school.
距离我们上个暑假在北京见面已经过去很久了，我非常想要了解你在学校的生活和学习情况。
Last time, we argued about the case of Queen versus Dudley and Stevens, the lifeboat case, the case of cannibalism at sea.
上次，我们讨论了奎恩诉达德利和斯蒂芬斯案，即救生艇的案例，海上食人惨案。
Last time, we started to talk about glaciers and how these masses of ice form from crystallized snow, and some of you were amazed at how huge some of these glaciers are.
上次我们开始讨论了冰川以及这些大型冰块是如何从结晶雪中形成的，你们中的一些人对这些冰川的巨大感到惊讶。
"How on earth, Badger," he said at last, "did you ever find time and strength to do all this?"
“班杰，”他最后说，“你究竟是怎么有时间和精力去做这一切的？”
"There's always plenty of time to go to school," decided the little rascal at last, shrugging his shoulders.
“上学的时间还多着呢。”这个小捣蛋终于决定了，耸了耸肩。
The fact that lake levels in the semiarid southwestern United States appear to have been higher during the last ice age than they are now was at one time attributed to increased precipitation.
美国西南部半干旱地区的湖泊水位在上一个冰河时代似乎比现在更高，这一事实曾一度归因于降水增加。
Toad listened eagerly, all ears, for a time; at last he could stand it no longer.
托德聚精会神地听了一会儿；最后，他再也忍不住了。
For retailers, who last year took in 24 percent of their revenue between Thanksgiving and Christmas, the cautious approach is coming at a crucial time.
去年零售商在感恩节和圣诞节之间获得了全年24%的收入，而在现在这个关键时刻采取了一种谨慎的做法。
Do you know what she was doing at this time last night?
你知道她昨晚这个时候在干什么吗？
The old lady was taken to the hospital in time at last.
那位老妇人最后被及时送到了医院。
When Mr. Twain was in Montana, his workmates lost small valuables from time to time, until at last, these things having all been found on Mr. Twain's person or in his suitcase.
吐温先生在蒙大拿时，他的同事们不时地丢失一些小贵重物品，到最后，这些东西都在吐温先生身上或他的手提箱里找到了。
Those who were not issued workclothes last time can get them at the general affairs office now.
上次没领到工作服的，现由总务处补发。
Nobody knows for sure where the paper form is at any given time, and who last worked on it.
在一个特定的时间点，没有人知道纸质表单在哪，也不知道是谁对它执行最近一次的处理。
The first rider stayed at his last station until it was time for his next job.
第一个骑手则在他最终到达的驿站上等待下一次出征。
Economic activity in those countries is still much weaker than at the same time last year.
那些国家的经济活动与去年同期相比仍然非常策弱。
The ship wasn't nimble enough to avoid an iceberg that lookouts spotted (the only way to detect icebergs at the time) at the last minute in the darkness.
当瞭望台（当时还只能通过瞭望台观测到冰山）发现冰山之后，在黑暗中行驶的泰坦尼克号没能在最后一分钟足够灵活地躲开冰山。
Last time we looked at the notion, last lecture we looked at the idea of a distribution.
上一次我们看过这个概念，上一次讲座中我们看到了概率分布的概念。
OK. At the end of the lecture last time, I also showed you an example of binary search.
好的，在上次课程的最后，我也给你们看了一个二分查找的例子。
But a flurry of announcements from technology companies suggests that its time may at last be at hand.
但是现在从科技公司一连串的产品发布中可以预见这个时刻终于来到了。
But a flurry of announcements from technology companies suggests that its time may have come at last.
最近来自一些科技公司的布告，表明可视电话的时代终于是要到来了。
The space shuttle Discovery is set to land for the last time Wednesday at the Kennedy Space Center in Florida.
发现号航天飞机将在星期三降落在佛罗里达州肯尼迪航天中心，这是发现号的最后一次太空飞行。
The space shuttle Discovery is set to land for the last time Wednesday at the Kennedy Space Center in Florida.
发现号航天飞机将在星期三降落在佛罗里达州肯尼迪航天中心，这是发现号的最后一次太空飞行。
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