Because ducks stick their heads under water to feed and people duck their heads like ducks.
因为鸭子通常会将头埋到水里来喂食；而人们低头弯腰的样子和鸭子如出一辙。
Extensive flooding in the country has delayed planting and many crops are still under water.
该国大范围的洪水已经延误了栽种，许多庄稼现在还泡在水中。
Marine construction technology like this is very complex, somewhat analogous to trying to build a bridge under water.
像这样的海洋建筑技术非常复杂，有些类似于尝试在水下建筑一座桥。
The Antikythera Mechanism was found a hundred years ago, under water in an ancient Greek shipwreck in the Mediterranean Sea.
100年前，人们在水下，在地中海的一艘古希腊沉船发现了安提基西拉机械装置。
Ren Jinxiang, Hunan Villager, said, "Our rice field is over there, all under water.
湖南村民任金祥说：“我们的稻田在那里，都淹没在水下面。
And in the wakeful intervals I pray that the morning may see the rain continue, our lane under water, and the bathing platform of the tank submerged to the last step.
在不时醒来的间隙，我祈望第二天的早晨还能看见雨继续下着，我们的胡同浸在水里，水漫到沐浴水池的最上一级台阶。
He swam under water until he reached a vessel at anchor, to which a boat was moored.
他在水里迂回曲折地潜到了一艘泊在港里的海船下面，海船旁又停着一只驳船。
The vessel managed an hour under water in the Mediterranean waters off the Cote d'Azur this week and is entirely controlled by hand or pedal.
本周这艘潜艇在地中海蔚蓝的海岸下呆了一个小时，期间它完全由手动操作，或者说完全由螺旋桨驱动。
Workers at the plant are trying to keep all fuel rods under water, which cools the rods (thereby preventing fires and explosions) and blocks radiation.
核电站工人正在尝试将所有燃料棒浸入水中，这样可以冷却燃料棒(阻止发生起火爆炸)，阻断辐射。
"We've been flooded with calls from people who want to cancel their reservation because they think Venice is under water, " said Giuseppe Mazzarella, a receptionist at the Hotel Monaco &Grand Canal.
摩纳哥大运河酒店的接待员，约瑟·马扎雷拉说：“我们不停接到电话要取消客房预定，他们觉得威尼斯已经被海水淹没了。
I could hardly see anything through the driving rain and I spent the whole game with my feet under water standing in the trench that doubles as a photo position.
当时倾盆的大雨让我几乎看不见任何东西，相机位成了排水沟，我的双脚整场比赛都泡在水里。
American millionaire Rob Innes created a "shark" called Seabreacher X: a James Bond-style. craft that can dive under water and jump 12 feet into the air.
美国百万富翁罗伯·伊恩斯制造了一个名为“海洋开道车x”的“鲨鱼玩具”——一辆即可在水下疾驰亦可跃出水面12英尺的詹姆斯·邦德式飞船。
Unlike the wind turbines that some people don't like to see out of their Windows, the Flexblue nuclear plants would be under water several miles out to sea.
不像风力发电机，有些人不愿意从窗口看到它们，Flexblue核电站建在水下离岸边数里远的地方。
There are problems with doing this in an equitable manner. But the benefits of reducing principal on under water mortgages will be felt by all in the economy.
问题是要以公平的方式来冲减，而且整个经济体的方方面面都会感受到冲减水下按揭贷款本金的好处。
The owner estimates that if the factory remains under water for a full month, it could take two months more to clean up.
如果工厂持续泡在水里一整个月，老板估计需要花两个多月来做清理工作。
As he rose to the surface, gasping for breath, he saw that he had been a long time under water; he was perceptibly farther down stream nearer to safety.
他露出水面，大口大口喘气。他发现自己在水中已经呆了很长时间；他意识到自己在向远处的下游漂去。
The situation is particularly serious in Gonaives, where parts of the city remain under water, people have taken refuge in shelters and there is no access to some communities outside the city.
“戈纳伊夫市局势尤其严峻，该市仍有部分城区被水淹，民众暂时栖身于避难所，城外一些社区道路不通，外界无法进入”。
The cost of putting equipment under water and concerns about the impact on the Marine environment have kept tidal experimental, but that's beginning to change.
设备的水下安装成本和影响海洋环境的担忧耽搁了潮汐能试验，但是这种局面正在改变。
Meanwhile, much of northeastern Japan, which was hardest-hit, is still under water, and entire neighborhoods have been buried by mud and debris.
同时，打击最严重的日本东北大部分地区仍然被水淹没，整个居民区已经被泥和残骸掩埋。
Driving this phenomenon is the rising number of households that are deeply 'under water,' owing much more than the current value of their homes.
这种现象背后，是陷入严重“负资产”的家庭数量越来越多，也就是所欠贷款超过了房产的当前价值。
If land is parched or salinated, if coastal and low-lying areas are permanently under water, these people cannot simply go home.
一旦土地变成焦土，或者盐碱地，一旦沿海和地势低的地区长期被水覆盖，这些人群不可能回到家园。
Tunnels, whether bored through imposing mountains orlaid hundreds of feet under water, are inspiring feats of engineering.
隧道，无论是贯通高山或是潜入深水，都可以称得上是引人瞩目的工程壮举。
It was clear that if the bubble got deflated even a little, many mortgages would end up under water - with the price less than the value of the mortgage.
很明显只要只要这些泡沫破灭一丁点，更多的抵押贷款就会以失败终结—以低于贷款价值的价格。
Monetary easing is largely useless because people with balance sheets under water are not interested in increasing borrowings at any interest rate.
货币宽松政策基本上无用武之地，因为当资产负债表陷入困境，无论利率是多少，人们对增加贷款就是不感兴趣。
Eventually, I realised that there was no need for me to have my head under water.
最终我总算意识自己没必要将头浸在水下。
Nationally, the proportion of homes that are "under water" is a still-awful 23%.
在全国范围内，缩水房子的比例维持在可怕的23%。
Nationally, the proportion of homes that are "under water" is a still-awful 23%.
在全国范围内，缩水房子的比例维持在可怕的23%。
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