单词：xenobiont
(biology) Any organism found in surroundings, or in association with another organism, in which it is normally absent
单词：xenobiont 相关文章
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
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[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
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[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
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This is the VOA Special English Development Report. Afghan Institute of Learning When Sakena Yacoobi was a child in Herat , Afghanistan, she saw many women suffer. They had no education and little or no medical care. Many died in childbirth. In the
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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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