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。
海豚在水下能看得见吗？
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。
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。
Because ducks stick their heads under water to feed; they duck their heads.
因为鸭子通常会将头埋到水里来喂食；而人们低头弯腰地样子和鸭子如出一辙。
And the moment we stepped out to safety, the factory was submerged under water.
当我们逃出到安全地方那一刻，整个工厂就淹没在水中了。
But when he held his flash light to the house, it was already completely under water.
但是，当他举起了闪光灯照房子时，那房子已经完全浸入水中了。
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。
“Take that out right now and warm it under water, ” I say.
“把那东西拿到一边去，在水里温一温，”我说。
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。
One fifth of the country was under water.
全国五分之一地区被水淹没。
Well, it can be dangerous under water. Don't touch that.
噢，水下可能有危险，别碰它，它会伤着你。
Well , it can be dangerous under water. Don't touch that.
噢，水下可能有危险，别碰它，它会伤着你。
"It can write under water," Crowley muttered.
“能在水下写字呢？”克鲁利嘟囔着。
Needless to say, most of these purchases are still under water.
不用说，买进的那些股票大部分仍在赔钱。
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。
The world under water is always full of wonder, beautiful scenery, mysterious creatures.
海底的世界总是充满着奇幻，有着美丽的景观，还有神秘的生物。
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。
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。
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