【我们说的英语】Antarctic Aliens(4/6)

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本期节目选自Podcast：Six Minute English
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Now an international research team has discovered how many of the seeds are getting there. As they describe in the journal Proceedings of the National Academy of Sciences they frisked scientists and tourists visiting the white continent and found that on average each is carrying nearly ten seeds tucked away in boots and folds of clothing.
That's incredible! Researchers frisked or searched scientists and tourists and found that on average each visitor was carrying nearly ten seeds tucked away or hidden in their boots and clothes.
Yes, I wonder how many seeds I'm carrying right now without realising it?
Yes, although perhaps London isn't as green as some places the visitors travel to on their way to Antarctica.
That's true. Did you hear that the producer called Antarctica the white continent? Soon it might be called the green continent.
Well, the plants aren't growing everywhere, but the continent is becoming a bit greener. The plants must look beautiful amongst all that white ice.
Yes, but it's a huge problem and scientists aren't very happy. Antarctica has a unique ecology which needs to be protected. Let's listen to the last part of the report. See if you can hear how many seeds are brought into Antarctica every year.