They range from a few days for small lakes up to several hundred years for large ones; Lake Tahoe, in California, has a residence time of 700 years.
它们从小湖的几天到大湖的几百年不等；加州的太浩湖有700年的滞留时间。
If you're eating out every day, spending about $7 a day, you could save around $700 a year, just by packing your lunch two times per week.
如果你每天在外面吃的话，可能会花个7美元。 如果你每周带两次便当的话，一年下来你就可以节约700美元”。
Of the 700 women surveyed, 40 percent said depression was an excuse to overspend; 60 percent said "feeling a bit low" was a good enough reason.
在参与调查的700位女性中，40%的人称压抑是疯狂购物的借口，60%的人称“感到有些低落”是一个充分理由。
A scant 700 feet off the water, the flight engineer was able to restart a second engine.
直到距离水面700英尺的高度时，飞行工程师才能将第二个引擎重新启动。
Sadly, this is not really a practical way to make a lot of titanium, so don't get your hopes up about starting that $700 scissors business.
不过令人悲伤的是，这个方法可不能用来炼制大量的钛。所以千万别用这个方法做700美金剪刀的生意哦。
The Swiss unit is a militia corps with a pool of at least 700 people ready for duty whose skills range from engineering, seismology, telecommunications and war surgery.
瑞士救援队是由至少700人随时待命共同组成的民兵队，他们的技能丰富，从建造工程、地震学、电信学到战地外科手术无所不通。
The events of last week in Pikalyovo also set a dangerous precedent for Russia's other 500 to 700 mono-towns - all dependent on a single industry for their survival.
上周发生在皮卡·洛夫的事件给俄罗斯其他500到700个“单一(产业)城镇”敲响了警钟，这些城镇全都依赖单一产业生存。
So if a 100-watt incandescent produces 1, 700 lumens, and a 20-watt LED does the same, the LED will be sold as a 100-watt equivalent.
所以如果一个10 0瓦的白炽灯产生1,700流明，一个20瓦的LED也产生同样亮度，那么就说这个LED灯相当于100瓦白炽灯。
He has developed 700 designs, written a dozen books on the subject, and created a museum of paper gliders.
他已经完成了700多种不同的设计，并就这一主题写了好几本书，还建立起一个纸飞机博物馆。
It led directly to forest fires in South East Asia, to a collapse of fish stocks in South America and a drought threatening 700, 000 people in Papua New Guinea.
它直接导致了东南亚森林火灾、南美鱼类资源的崩溃以及威胁到巴布亚新几内亚700,000人口的干旱。
When I first started out I was only earning about 10 yuan ($1.46) a week, with an occasional 700 yuan bonus for winning a game I quickly spent that whole bonus.
一开始我每星期只赚10块钱（1.46美元），有时候打赢比赛会有700块奖金，我总是很快就花光这些钱。
At present, a cheeseburger Happy Meal with fries and a low-fat chocolate milk come in at 700 calories, while other choices, including one with four chicken McNuggets, measure at 390 calories.
一份配薯条和低脂巧克力牛奶的吉事堡套餐含热量约700卡，而一份含四块麦乐鸡的套餐则只含390卡路里。
But the habit of the moose to wander across highways in the dark has made it a road hazard responsible for around 700 collisions a year.
但驼鹿晚上横穿高速公路的习惯让其成为每年700例撞车事故的道路危险因素。
And while the Mekong heaves with more than 700 varieties of fish, including a catfish as big as a grizzly bear, the water was too opaque, at the end of the rainy season, for us to see any of them.
湄公河也拥有700多种鱼类，包括像灰熊一样大的大鲶鱼，但在雨季的后期河水浑浊，我们没有看见一条鱼。
Salaries typically range from 400 (non-convertible) Cuban pesos a month for a factory worker to some 700 for a doctor.
最具代表性的工资是，普通工厂工人每月能挣得400古巴比索（不可自由兑换），一位医生的工资则是大约700古巴比索。
Despite a worst-in-test 700 lumens (claimed) on a 14-watt draw, the EcoSmart didn’t seem particularly dim. And the globelike casing around the coil gave this CFL a nice, even glow.
虽然在测试中表现出700流明的最差亮度（耗电14瓦），其实并不是特别的暗。
A car, he said, USES the energy equivalent of the labor of 2, 000 men - a jet plane that of 700, 000 men.
他说，一辆轿车需要的能量相当于2000个人的劳力，而一架喷气式飞机则需要700000个人的劳力。
With a scattered population of merely 700, 000, Alaska is not a huge market for energy, even though residents need lots of heat and industries like oil drilling require plenty of power.
阿拉斯加拥有70万人口，并且人口分散。虽然居民和石油开采等行业对能源需求很大，阿拉斯加的能源市场仍有待于大规模开发。
The record is apparently held by a circulator who once gathered 700 signatures in one day by going through a queue for the Tutankhamun exhibition at the Los Angeles County Museum of Art.
记录由一个曾在一天之内征集到700个签名的串联员保持，他是从排队参加洛杉矶县立艺术博物馆tutankhamun展览的人群中征集到的。
Israel's antiquities authority says a storm that raked over part of an archaeological dig this week has exposed a 1, 700-year-old statue.
以色列考古部门称，这周的一场风暴让一座一千七百年前的雕像重见天日。这场风暴已造成部分挖掘现场的损坏。
A survey of 700 dentists found that brushing teeth too hard was a leading cause of sensitive teeth, reports WebMD.
据WebMD网报道，有一项来自700多名牙医的调查发现，刷牙太用力会导致牙齿对东西敏感。
Reasons to worry: Santa María's last big blast was one of the four largest volcaniceruptions in the 20th century, registering a VEI magnitude of 6 and leaving a 700-by-1,000 meter craterbehind.
列入关注的理由：20世纪四次最大规模的火山爆发，圣塔玛里亚就占了一次，记录的火山爆发指数(VEI)为6级，留下了一个直径为700-1000米的火山口。
It is an important step in combating a disease that still kills more than 700, 000 people a year and debilitates millions more.
每年因疟疾致死的人有700000人，致残的有数百万人，这个试验结果是战胜这一疾病的重大进步。
It is an important step in combating a disease that still kills more than 700, 000 people a year and debilitates millions more.
每年因疟疾致死的人有700000人，致残的有数百万人，这个试验结果是战胜这一疾病的重大进步。
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