你能穿着脚蹼跨栏吗？IT would be hard running in swim fins (脚蹼), never mind hurdling (跨栏). But German Christopher Irmscher can finish a 100m hurdle in swim fins in 14.82 seconds. He is the fastest man ……

). Its bill (嘴) is long and thin. Its fin is like a big sail (帆). These things help it swim fast. It is the fastest fish in the sea. It can swim 100km an hour. That is as fast as a car on the highway ……

). Its bill (嘴) is long and thin. Its fin is like a big sail (帆). These things help it swim fast. It is the fastest fish in the sea. It can swim 100km an hour. That is as fast as a car on the highway ……

. I can run the 100-meter hurdles (跨栏) with swim fins (脚蹼). I am the fastest person to do so in 14.82 seconds (秒).Call me superman! I am Kevin Fast. I come from Canada. I can pull (拉) a plane ……

;A sailfish can swim up to 110 kilometers per hour. This is as fast as the world’s fastest sailboat (帆船)!A sailfish can swim up to 110 kilometers per hour. This is as fast as the world&rsquo ……

; has mechanical fins (机械鳍). It can swim, turn and dive (潜水) like a real shark. It swims as fast as 0.7... (机械鳍). It can swim, turn and dive (潜水) like a real shark. It swims as fast as 0.7 meters per second ……

of nearly 11,000 meters. The robot has two wing-like fins (鳍). It can swim like a real fish. Some robots... the ocean at a depth of nearly 11,000 meters. The robot has two wing-like fins (鳍). It can swim like ……

飞人刘翔重回巅峰。CHINESE 110-meter hurdler (跨栏选手) Liu Xiang won again! He finished running in 12.87 seconds at the Diamond League (国际田联钻石联赛) on June 3 in Eugene, US. That’s as fast as the world record. “I’m ……

wearing fins (脚蹼) and a snorkel (通气管). Brave swimmers jumped in the cold waters. Some even wore expensive clothes so that they could finish as fast as possible. This fun local tradition takes place every ……

. They grow under the ground.4.F___It lives in the water and can swim. It has a tail and fins (鳍).5 ……

is that they breathe (呼吸) with their skin. Also, their fins (鳍) are strong. They use their fins to walk and jump on land. They can even climb trees with their fins.Mudskippers (弹涂鱼) stay on land even longer ……

to BBC News.SoFi can swim, turn and change speeds just like a real fish, and more importantly, capture... artificial muscle” is made of a type of rubber, it has two side fins (鳍) for maneuvering (挥动), and its nose ……

and also have fins (鳍) to help them swim.Tadpoles go through a whole change of form.This is called metamorphosis (变形).They grow legs, lose their gills and fins, and slowly turn into adults (成年 ……

know that they usually have twofins(鳍). Their fins look like other mammals' arms or front legs. Recently people found an unusual dolphin in Japan. It has an extra pair of fins near its tail, about ……

the People’s Liberation Army Navy’s swim team at 14.Before the World Championships, Ning took part... “the best role model for Chinese youths to look up to”.“As well as its fast-growing economy, China has also ……