每周一聽——那些年我們一起練過的聽力（第191期）

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每周一聽——那些年我們一起練過的聽力（第191期）

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It's one of the underwater world's classic partnerships:clownfish and Nemo hides out in the anemone, which helps keep    (1)    fish at bay.
"But at the same time there are other fish species that will kind of nibble on the sea anemones, and the clownfish will actually go out and scare them away." Jeff Gore, a biophysicist at MIT.
"So in this case there's across-protection    (2)    between these two species in which they help to avoid predation."
Such cross-protection is usually seen between two animals.
But Gore studies the same sort of mutualism in microbes.
He and his team demonstrated the first experimental example of that    (3)    relationship in drug-resistant microbes, using two strains of antibiotic-resistant E. coli bacteria:
one    (4)    to ampicillin, the other to chloramphenicol.
The researchers grew the bacteria together in a test tube, in the presence of both antibiotics.
And rather than    (5)    to the drugs, each bacterial strain deactivated one of the two antibiotics—thus protecting the other strain.
That activity led to a stable    (6)    over time.
Which Gore says could in theory give the bugs an opportunity to swap resistance genes, through what’s called horizontal gene transfer—one bacterium    (7)    genetic material to another.
Any such transfer could make either or both strains    (8)    resistant to both types of antibiotics.
The findings are in the Proceedings of the National Academy of Sciences.
The same story might play out in our guts, too—but it's too early to translate it into medical    (9)    .
"It's always important to remember that just because we see a particular dynamic in the laboratory doesn't mean we should immediately go and change our clinical dosing practices.
But then those sorts of results are then used as a guide for the kinds of phenomena that clinicians may want to watch out for in their    (10)    ."
Cause the more we know about this bacterial buddy system, the better we may be at breaking it up if they team up against us.
最近畢業(yè)季，各種事情場合比較多，到現(xiàn)在還沒有給大家評分，在這里和大家說聲對不起，我會盡快完成評分�！癝tudying has almost no short term rewards. But the long term rewards are huge!”讓我們一起學(xué)英語，我們一起聽聽力！每天進步一點點！ 期待更多小伙伴加入我們。加油！�。〗饚弄剟罨顒永^續(xù)，連續(xù)參加4期的小伙伴們請私信我，我會給大家及時發(fā)放獎勵，期待你們?nèi)〉酶�大的進步和更多的獎勵！
上期答案
1. exposing
2. alternating
3. tissues
4. magnet
5. resolution
6. particular
7. renditions
8. hologram
9. reinforce
10. compatible

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