如果你的背包变旧了，你会把它们当作垃圾扔掉吗？
If your backpacks become old, will you just treat them as rubbish and throw them away?
当你背包旅行时，有一件事很重要，那就是确保你只带基本需求品，这样你的背包就不会太重。
One thing that's important when you're backpacking is to make sure you carry only basic needs, so your backpack isn't too heavy.
开始前要解开你的背包腰带。
把你的背包扔进去吧。”他边说边指他的运货车的后面。
Throw your rucksack in, " he said, motioning to the empty space in the back of his van.
我是这辆列车的乘警，我们怀疑你的背包中有危险物品，可以让我们检查一下吗？
I'm responsible for security on this train. We suspect that there might be some dangerous substances in your bag. Can we have a look?
如果别的攀登者偷了你的背包、钱袋，装满他自己的背包，加重他自己的钱袋，你应该可怜他；
Should the other climber steal your sack and your purse and 31) wax fat on the one and heavy on the other, you should pity him;
耐心地实践。你的背包可能是你最重要的一件装备，所以多花点你的时间在选择背包的过程上。
Your backpack may be your most important piece of gear, so take your time with the selection process.
也许在家里的时候你的背包看上去并不重，但是一旦在热带的太阳底下行走六个街区后，你就会非常痛苦。
Your backpack may not seem heavy when you put it on at home, but after six blocks in the tropical sun, you’ll be miserable.
也许在家里的时候你的背包看上去并不重，但是一旦在热带的太阳底下行走六个街区后，你就会非常痛苦。
Your backpack may not seem heavy when you put it on at home, but after six blocks in the tropical sun, you'll be miserable.
你不能超过背包的容量。
比如，你知道现在这么多学生背着的背包最初是为军队设计的吗？
Did you know, for example, that the backpacks that so many students carry today were originally designed for the military?
你可以构建所有子集，检查重量是否小于背包的重量，然后选择最大值的子集。
You could construct all subsets, check that the weight is less than the weight of the knapsack, and then choose the subset with the maximum value.
一旦孩子们开始背书包，那种笨重的传统午餐盒就很难装进去了。“但你不能只往背包里扔个三明治。”贾阿塞卡拉说。
Once kids started carrying book bags, that bulky traditional lunch box was hard to fit inside."But you can't just throw a sandwich in a backpack ," Jayasekara says.
强劲的沙尘暴可以卷起重物，所以你应该尽量保持低姿态，靠近地面，并用你的手臂或背包保护你的头部。
A strong wind of dust storms can carry heavy objects, so you should try to stay low, and close to the ground, and protect your head with your arms or a backpack.
为什么你在背包旅行时遇到的人似乎比在家的朋友更有趣、更外向？
Why is it that the people you meet when backpacking seem to be more interesting and outgoing than your friends at home?
你可以把旧背包放在网上出售，这是一个很棒的主意。
It is such wonderful idea that you can put your old backpacks online for sale.
但如果你能够反其道而行之，你将发现，九月，正是那些机敏能干的人背上背包开始新的探险之旅的时候。
But if you can buck the trend, you'll find that September is when those with the savvy and the means pack their bags and embark on adventure.
如果你舍不得放弃背包给你提供的充裕的空间的话，那就试试吊带包。
If it's the space that backpacks offer that you hate to give up, then try sling bags.
因此你可以构建所有子问题，判断它的重量，是否小于背包的重量，然后选择值最大的子问题。
And so you could construct all subsets, check that the weight is less than the weight of the knapsack, and then choose the subset with the maximum value.
想象一下当你沉重的背包总是被荆棘和树枝挂住时，你是多么疲惫和沮丧。
Imagine how exhausted and frustrated you'd be as your heavy backpack kept getting snagged in the branches and the vines.
假如你是一个渴望国际旅行的背包族，那么这对你做旅行计划和在线预订都是非常有用的。
That’s helpful if you’re an avidinternational backpacker who does most of your travel planning and bookingonline.
你要做的只是在背包里装备一些东西，然后就可以带全家在宜家度过一个美妙的旅程。
All you do is you put some stuff in a backpack and you take the whole family on an incredible journey through IKEA.
弹性并不意味着你可以卷起屏幕塞进背包，但它是生产读者可以用单手方便持有的轻质更大屏幕阅读器的关键。
Flexibility doesn't mean you'll be able to roll up the screens and stuff them in your backpack, but it is key to making readers with larger screens light enough to hold conveniently in one hand.
你是个很有野心的背包客，你几乎走遍了全美，甚至更多地方。
You are an avid backpacker, you've been all of the United States perhaps even broader.
公司董事长，创始人之一徐明灯（音译）说，它还可以卷起来放在背包里，“你可以带着它，在需要的时候来给你的笔记本充电。”
They could also be rolled up and carried in a backpack, says the company's cofounder and president, Xunming Deng. "You could take it with you and charge your laptop battery, " he says.
想象你正试图穿过一个充满荆棘和矮树枝的小道，而且你背着背包，里面塞满了你认为会用得上的东西。
Imagine trying to walk down a narrow path that is hemmed in by thorny vines and low hanging branches and you're wearing a backpack overstuffed with the many things you think you need.
想象你正试图穿过一个充满荆棘和矮树枝的小道，而且你背着背包，里面塞满了你认为会用得上的东西。
Imagine trying to walk down a narrow path that is hemmed in by thorny vines and low hanging branches and you're wearing a backpack overstuffed with the many things you think you need.
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