dolphinMeet the robot dolphinMy skin feels like a real dolphin’s skin. Also, I can swim like a real dolphin.My skin feels like a real dolphin’s skin. Also, I can swim like a real dolphin.I am ……

a life-like robotic (机器的) dolphin. It acts and sounds like a real dolphin. It can swim for up to 10... a real dolphin. It can swim for up to 10 hours on a single charge (充电) of its battery, ABC News ……

Dolphins sleep with one eye open!. ……

Dolphins sleep with one eye open!. ……

Dolphins sleep with one eye open!. ……

that look exactly like the real animals. Creators say that robot dolphins provide an alternative to keeping..., a documentary focused on dolphins, once said, “a dolphin’s smile is nature’s greatest ……

Dolphins (海豚) sleep with one eye open. ……

. The robotic dolphin is just a company-controlled object, not a real substitute (替代品) for a living... company has developed robotic dolphins that look exactly like the real animals. Creators say robot ……

In the Amazon River (亚马逊河), there are many pink dolphins (海豚). ……

2020年9月总第71期2020年9月总第71期Smart dolphins Smart dolphins     . ……

VCG  海豚“捕鱼工”，人类好帮手海豚“捕鱼工”，人类好帮手Humans and dolphins show the wonders of cooperationHumans and dolphins show the wonders of cooperation. ……

可爱的海豚Many people like dolphins very much. Dolphins are mammals (哺乳动物). They live in the sea and eat fish. ……

Choose the answer: 1. Which of the following about dolphins is NOT true?A. They spend most of their time sleeping at night. ……

Dolphins might “smile” at their friends.    TUCHONGDolphins might “smile” at their friends.    TUCHONG海豚也会对好朋友“微笑”海豚也会对好朋友“微笑”We often smile to avoid (避免)misunderstandings (误解). ……

看看下面这幅趣图,尽情发挥你的想象力,猜猜它们在说什么?What is the dolphine and the tiger talking about? Send your ideas to wang. jin@21stcentury. com. ……