They wait below the seals and then swim up and crash into them by surprise at 40 kilometres per hour, killing them with one bite.
它们在海豹下方等待，然后游上来，以每小时40公里的速度突然撞向海豹，一口就把海豹咬死。
He can swim up and down the river many times.
他能够在河里游上游下好多次。
Ice bears can swim up to 100 miles at a time.
北极熊可以一口气游一百英里。
I would swim up and down and all around in laps of two or three.
我会游泳，向上和向下，并在各地圈的两个或三个。
A Pacific salmon struggles to swim up a stream on Kodiak Island.
一只太平洋大马哈鱼正在科迪亚克岛的一道小溪中艰难的逆流而上。
Because when haddock face a net, they swim up to escape and get caught.
因为当黑线鳕鱼看到一个网，它们会向上游逃跑但是却被捕捉。
They are friendly creatures that might even swim up to the side of a ship.
它们是很友好的生物，甚至会在船支旁边游过。
A real fish can swim up to ten body lengths a second. The robot version clocks just one body length a second.
一条真鱼可以一秒钟游过十个身长的距离，而这种机器人还只能一秒钟游过一个身长。
It has large openings at the bottom of the net. Because when haddock face a net, they swim up to escape and get caught.
网底部设计成大开口，因为黑线鳕撞到渔网第一反应是向上游动以逃生；
You truly can swim up to a Mola, they're very gentle, and if you approach them right, you can give them a scratch and they enjoy it.
你真的可以游到翻车鱼身边，它们很温和，如果你靠近得当，你就能给它们抓抓痒，它们会很享受。
There are numerous theories that advocate staying in the car calmly until it hits the bottom, fills with water, and you open the door and swim up.
有种理论说：呆在车上保持镇静，直到车辆沉没到水底，内部被水充满，然后你打开车门，游泳逃生。
A friendly manatee may swim right up and touch your face with its hands.
一头友好的海牛可能会游到你面前，用它的手摸你的脸。
Every year, millions of salmon swim from the ocean into the mouths of rivers and then steadily up the rivers.
每年，数百万条鲑鱼从海洋游到河口，然后稳定地逆流而上。
Turn it down to set the mood, or turn it up to start the dancing! What's it like to swim like a fish?
把它调小来调节气氛，或者把它调大来开始跳舞！像鱼一样游泳是什么感觉？
There'll be ample opportunity to relax, swim and soak up some sun.
将会有充足的机会来放松、游泳和接受一些阳光。
She has always been encouraged to swim to build up the strength of her muscles.
她总是被鼓励去游泳以增强肌肉力量。
I told her she shouldn't swim after a whole night's coughing, but she refused to give up and insisted she go.
我告诉她，咳嗽了一整夜后，她不应该游泳，但她拒绝放弃，坚持要去。
This small reptile, which measures just 10 centimeters long, can swim through the sand dunes at up to 15 centimeters per second.
这种身长只有10厘米小型爬行动物，可以在沙子中以最快每秒15厘米的速度游动。
There are groups of jellyfish in the lake, but they do not stab people. Divers can swim with jellyfish, or pick them up without worrying about injuries.
湖中水母成群，但它们不会刺人，潜水者可以与水母一同畅游，或者捧起它们观赏，完全不必担心会受伤。
A friendly manatee may swim right up and touch your face with his.
一头友好的海牛可能会径自游向你，然后和你贴面。
Devices may include sensors that swim inside arteries, detecting the build up of harmful plaque and rapidly delivering medications to the affected area.
装置可能包括可以在动脉中游动的感测器，检测有害蚀斑的增长，并且迅速将药物提供给感染区。
Pups can swim within hours of their birth but stay with their mothers for up to two years before going off on their own.
小海象出生几个小时就会游泳，不过，它们要和妈妈一起生活两年，然后才会独自谋生。
To warm up for swimming, swim slowly at first and then pick up the tempo as you're able to.
为游泳热身，那就开始时慢慢游然后提高速度到你能够达到的水平。
Water says: The moment when I wake up to you are a fish, I already knew you will swim to my heart.
水对鱼说：当我意识到你是鱼的那一刻，就知道你会游到我的心里。
Up to 25 percent of the world’s tropical fish species swim in the protected waters around Koh Lipe (the island is in Tarutao National Marine Park).
里朴岛周围的水域里，多达25%世界热带鱼种在受保护的水域里游来游去（该岛在绿龟岛（Tarutao）国家海洋公园内）。
That afternoon, I watched ants dive into the cups for a swim, staying under-water for up to thirty seconds.
那天下午，我观察蚂蚁跳进“杯中”游泳，在水下可以待30秒左右。
I used to swim in the ponds around our village, but they have all dried up.
我以前经常在村子周围的池塘里游泳，现在这些池塘都干了。
I used to swim in the ponds around our village, but they have all dried up.
我以前经常在村子周围的池塘里游泳，现在这些池塘都干了。
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