Burning the forest just once can leave behind enough black carbon to keep the soil fertile for thousands of years.
森林仅仅燃烧一次就能留下足够的黑碳，来保持数千年土壤肥沃。
For years he managed to keep up the fiction that he was not married.
多年来他设法一直给人一种未婚的假象。
Pledging to run Pilgrim safely, the company has applied for federal permission to keep it open for another 20 years.
为了保证 Pilgrim 的安全运营，该公司已经向联邦政府申请了继续运营20年的许可。
Some goods, like English newspapers, keep the same price for years, but Chinese flowering cabbage can double and then halve in price in months.
一些产品，比如英文报纸，多年来都保持着同一个价格，但是菜心的价格在几个月内可能翻一番，接着又减半。
We're obligated to keep a pulse on the population for at least five years after the foxes are delisted.
在狐狸被除名后的至少五年时间里，我们有义务继续监测狐狸种群。
Keep out of the reach of children under 6 years of age.
请将本品放在6岁以下儿童接触不到的地方。
Two years later, Emily has reached her 30-pound weight loss goal and knows she can keep up her healthy habits for life.
两年后，艾米丽已经达成了30磅的减肥目标，而且知道自己可以保持健康的生活习惯。
If you keep on writing for three years, every day, you should be strong.
如果你在三年间内每天都写作，你就必须要强壮。
Virgin has committed not to lay off staff for three years and to keep the bank's headquarters in Newcastle, a city short of private-sector employers.
维珍金融已经承诺在三年内不会解雇员工，并且将保持该行在纽卡斯尔的总部，该城短缺私营部门雇主。
But we would like to keep the body for two or three years to see that the mummification process worked.
但我们更愿意保存遗体两到三年以观察是否木乃伊制作过程起到了作用。
At smaller firms starting pay has for years failed to keep up with soaring tuition fees, and of late has fallen (see chart).
小公司的起始薪资跟不上高涨的学费，这个现象维持几年了，在近期更是下跌得厉害。
If we could keep records across millions of years, we might want to count monkeys and apes as our Cousins too.
假如我们能够备存纪录数百万年之久，可能我们会把猴子和猿也视作表兄妹。
Dried pasta can keep for two to three years, provided it's kept in an airtight container in a cool, dark place.
干燥的意大利面如果用密闭容器装起并放在阴凉避光的地方将能够储存两到三年。
Today, cosmetics companies dance around truth-in-advertising laws to imply that their creams and lotions can keep the years at bay.
今天，化妆品公司打着公信广告法的擦边球让人们相信他们的霜和润肤露能够让时间倒流。
If you want to keep your eyes vision clear for long years eat fatty fish twice a week.
如果你想常年保持良好的视力，每周食用两次高脂肪的鱼类。
I'm 60 now and I keep thinking maybe I have another 15 years.
我现在60岁了，而且我在想我可能还有15年可活。
And it might not simply be the magical aura of Apple that will keep fans around for years to come.
粉丝们多年来的不离不弃也不仅仅是因为苹果的魔力光环。
You could also take all of your digital photos and turn them into a Photobook for you to keep and share for years to come.
你也可以把你们所有的电子照片洗出来变成相册，留着在以后的几年中一起看。
Through the years, I've found three issues that keep people from reaching their career objectives.
这些年来，我发现了三个阻碍人们实现职场目标的因素。
And we'll pay tribute to our troops and military families, and all those who have served over the past ten years, to keep us safe and strong.
我们还将向我们的军人及其家属，以及所有在过去10年里为国服役的人员致敬，是他们让我们保持强大，享受安宁。
Our Congressman had been in Washington 20 years and thought we'd keep voting for him forever.
我们的国会议员已经在华盛顿二十年了，他以为我们会永远投他的票。
We keep up correspondence recently for several years.
我们几年来一直保持通信联系。
Commodity prices, which have surged over the past three years, could keep rising strongly, thanks to rapidly growing demand from emerging economies, such as China and India, and to supply constraints.
由于像中国和印度这样的新兴经济体的快速增长的经济需求和有限的供给限制的推动，过去三年一直上升急剧上涨的商品价格将不断上升。
I would keep it in my office for eight years.
在以后的八年里，我一直将这个罐子保存在办公室里。
She did keep that Magic Quarter for several years, though — in a little box along with other COINS and items accumulated through childhood and adolescence.
她把那个“魔法硬币”保存了很多年，然而是和她童年时期、青春期收集起来的其他硬币、小物品一起放在一个小盒子。
Derivatives contracts keep various parties entangled for years, which, as he vividly explained, can create real hazards once those assets start deteriorating.
衍生品的合同使得各方纠缠多年，他生动地解释了，一旦这些资产开始恶化会产生真实的危险。
I'd been saving for years, and the money couldn't keep me trapped any longer.
这么多年来我一直在存钱，这些钱可以让我不再陷入困境。
I'd been saving for years, and the money couldn't keep me trapped any longer.
这么多年来我一直在存钱，这些钱可以让我不再陷入困境。
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