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When Scotsman Alexander Graham Bell invented the telephone in 1876, it was a revolution in communication. For the first time, people could talk to each other over great distances almost as clearly as if they were in the same room. Nowadays, though, w
英文杂志-Magazine
[00:00.00]I see.Well,this phone is widely used in China. [00:04.71]It's designed in Germany but it's made in China. [00:08.04]That's why it's not too expensive. [00:10.82]Can I see it ?...Thank you .I like it , [00:13.78]and it's not too heavy .eithe
外研社新标准初中英语九年级
[00:00.00]Module 11 MOBILE PHONES [00:07.06]UNIT 2 Mobile phones are mostly used [00:10.69]to keep in touch with other people . [00:13.73]1 Listen and read. [00:16.75]Mobile phones [00:18.68]These days,mobile phones [00:20.52]are very common all over
外研社新标准初中英语九年级
Evan Gant使声波可视，给我们展示了cymatics的科技性和艺术性。cymatics不仅可以分析复杂的声波，例如海豚的声音，还可以创造复杂而漂亮的设计。
TED公开课:头脑游戏
Kenya Cattle Benefit from Mobile Service iCow Mutige is three months' pregnant. Her owner, Michael Ruchu, is delighted, predicting that his cow's offspring will produce up to 25 liters of milk each day. Its father was a very good bull, and I am expec
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BBC Learning English 6 Minute English Mobile phones Doug: Hello, Im Doug Campbell and this is 6 Minute English. Today were talking about mobile phones. And Im here with Jackie Dalton have you got your mobile Jackie? Jackie: Yes, I have Doug but Ive
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