Observations of the Arctic reveal that the Arctic Ocean is covered by less ice each summer than the previous summer.
对北极的观察显示，每个夏天北冰洋上面覆盖的冰川都比前一个夏天的要少。
They are deployed each summer to help swimmers in need of rescue。
每到夏天，这些救生犬会被增派到各个海滩度假地，帮助救援溺水者。
That means we hire just about as many interns as we can physically fit in our offices each summer.
这意味着，每年夏天我们的办公室有多少空位置，我们就要请多少实习生来。
Paula travels to New Mexico each summer to paint western landscapes.
波拉每年夏天都去新墨西哥州画西部风景画。
The big question now is when the ice will disappear totally each summer. There will be an answer in 2010.
现在重要的问题是，何时北极在夏季再无冰存在。
Overhead of open-air theatre of Lykavittos hill, each summer hosts musical, theatrical performances in evenings.
利卡维多斯山的露天剧场，每年夏天这里都会在晚上举办一些音乐会及戏剧表演。
He teaches and performs each summer at the Schlern International Music Festival located in the Italian Alps.
每年夏季，他都要在位于意大利阿尔卑斯山的仕勒恩国际音乐节演出和讲学。
The vast majority of walruses in the Chukchi each summer are females who fatten up on clams that populate the seafloor.
每年夏天生活在楚科奇海域的绝大部分海象都是雌海象，它们吃食遍布海底的蛤蜊储蓄脂肪。
Kelly: No way! I have met lots of really good friends at camp. I have been going each summer since I was about 10.
凯莉：不可能！我在露营的时候结识了很多很好的朋友。自从我十岁开始就一直每个夏天都去。
Once each summer, our relatives from around the country will visit us, and we all stay at the beach for a week or so.
每到夏天，我们的亲戚就会从全国各地赶来拜访我们，然后全部人一起在海滩呆上一周左右。
Likewise, hundreds of thousands of southern elephant seals come to the island each summer to breed and to rear their young.
同样，每年夏季来到这个海岛繁殖哺育后代的南象海豹的数量也多达数十万。
The greatest threat of all would be from any change to the monsoon, which delivers most of the region's fresh water each summer.
而最大的威胁则来源于雨季的变化，该地区大部分淡水资源都来自于每年夏天的雨水。
Hawking holds a Distinguished Research Chair at the Perimeter Institute, and is expected to spend several weeks there each summer.
霍金在圆周理论物理研究保留着一个杰出研究员的职位，预计每年的夏天，他将在那里工作几个星期。
When I was a little boy, my family would take a couple of months — yes, months — off each summer to go on a long, leisurely vacation.
——当我还是个男孩的时候，每年夏天我们家都会花几个月——没错，几个月——去享受一个悠长假期。
We have always known pretty much when it will rain, what the temperature will be each summer and winter, and how high the rivers will flow.
我们一直相当清楚什么时候会下雨，每年夏季和冬季气温是多少，河水流量有多大。
Glaciers that naturally melt each summer along the Gulf of Alaska flushout huge amounts of organic material, made up mostly of dead microbes.
时逢夏日，冰川就会自然融化，顺着阿拉斯加湾冲刷出大量由微生物尸体构成的有机质。
Layers of frozen sea water, known as sea ice, cap the Arctic Ocean. The ice grows dramatically each winter, and melts just as dramatically each summer.
北冰洋的冰层由结冰的海水构成，这些冰层在每年的冬天急速冻结，又在每年的夏天迅速消融。
When he was young, he would get up early each summer morning to beg his mother to take him to the beach to play and watch the ebb and flow of the tide.
夏天的每个早晨，他总是一起床便央求着母亲带他去海边嬉戏，欣赏着美丽的海浪和潮汐。
There is also the effect on Alaska's tourism, now its second-biggest industry after oil. Around 1.5m people visit the state each summer, many of them coming to see the wolves and bears.
如今阿拉斯加仅次于石油业的第二大产业、旅游业也受到了影响，每年夏天约有150万游人，其中很多都是专程来看狼和熊的。
With millions flocking to Italy's crowded beaches each summer, the Italian Coast Guard says it rescues about 3,000 people every year - and their canine helpers are credited with saving several lives.
每年夏天，义大利海滩度假地会迎来数百万的游客。 据义大利海岸防卫队介绍，他们每年营救的落水者数量达3000人——而这些救生犬就曾救过几条人命。
Each summer is hotter, each winter more bitter.
夏天越来越热，冬天越来越冷。
Each summer a new batch of students tries to find work.
每年夏天都有一批新的学生要找工作。
Each summer, I work hard to add another element to my game.
每年夏天，我都努力为自己的比赛加入新的元素。
Each summer, Mister Sipan travels to where the shepherds live.
每年夏天，西庞先生都要到这些游牧部落居住的地方去考察。
Each summer, I leave my hometown of Tucson in search of cooler climes.
每年夏季，我都离开家乡图森去寻找凉爽的地方。
Each summer the family traveled to their holiday home in northern Michigan.
每年夏季，海明威一家都前往密西根州北部的度假屋。
Each summer the family traveled to their holiday home in northern Michigan.
每年夏季，海明威一家都前往密西根州北部的度假屋。
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