时间:2019-02-16 作者:英语课 分类:英语听力广播—Listening


英语课

 【英文原文】


Most people believe that regular hand-washing is the best way to prevent infections. And they’re right: hand-washing does prevent certain infections, but too much washing can actually help some infections along. What’s going on?
Right now, there are millions of bacteria from hundreds of different species happily residing on your hands, not to mention your teeth, gums, eyes and ears. These bacteria are either transients or residents. Washing your hands helps remove transient bacteria that are just visiting from foreign places like the sink, doorknob and even other people’s hands. Washing shouldn’t remove your hands’ own resident bacteria, though.
While it’s hard to imagine your hands as a bacterial 1 homeland, these residents are perfectly 2 normal and are important in maintaining your health. They help prevent transient bacteria from settling in, and each resident keeps other residents from overpopulating.
If you scrub your skin too frequently, especially with anti-bacterial soap, you could upset resident bacteria, leading to the overpopulation of certain species and local skin infections. Scrubbing away residents might also let transients move in and cause disease. Finally, over washing could break down the skin itself. This allows harmless skin residents to go beneath the skin, where they can become dangerous transients.
So, while a good wash with soap and water is still a great idea, overwashing might lead to some unpleasant symptoms, not to mention inflamed 3 and unsightly hands.
 

a.细菌的
  • Bacterial reproduction is accelerated in weightless space. 在失重的空间,细菌繁殖加快了。
  • Brain lesions can be caused by bacterial infections. 大脑损伤可能由细菌感染引起。
adv.完美地,无可非议地,彻底地
  • The witnesses were each perfectly certain of what they said.证人们个个对自己所说的话十分肯定。
  • Everything that we're doing is all perfectly above board.我们做的每件事情都是光明正大的。
adj.发炎的,红肿的v.(使)变红,发怒,过热( inflame的过去式和过去分词 )
  • His comments have inflamed teachers all over the country. 他的评论激怒了全国教师。
  • Her joints are severely inflamed. 她的关节严重发炎。 来自《简明英汉词典》
学英语单词
.udf
acceptable price
All my eye and Peggy Martin
Android SDK
applied bacteriology
arrieta
bengal beans
blowdown turbocharging system
boneless cut
buffer stop
Calcinogenic
candicate
carboxylesterase
Carnforth
cases broken at bottom
cdx
celsesticetin
Chismville
clophedianol
crisscross offense
crystal glasses
desertedness
desulfurating agent
DLEA
double-minded
drawbridge rail lock
Drumbridge
due-on-sale clause
eastern cottontail
engine life expectancy
estrone
excommenge
fixed amount money order
flyover crossing
foot wales
free trial
front office system
full speed running
giant hornet
gingriches
girlifies
grilled cheeses
harmonised
heteroimmunity
Heteropilumnus
high pressure gas vessel
how was I to know?
industrial dispute-tribunal
jobcentres
ktsf
laser carrier
lead-207
lenzitin
life interval
loading buffer
maginn
mangel-wurzels
Marking to market
meroquinene
mouse-sized
musclus erector spinae
nonmarrying
o'bomber
ommatocarcinus pulcher
opium sumggling
p-chloro-o-nitroaniline
Pearson square
phoranthium
polives
polyblastiopsis pertusarina
premaxillary
press-agantry
pressure-driven
preventiveness
pseudo-parallel lines
psychophysical effects
pyths
raja radiatas
real-time correction
rentier states
ring in the new
sample swatch
SDF (seasonal derating factor)
semi-electronic typesetter
shatterer
sociocentric
sponge boat
stage of pneumocardial compensation
stored evaluation
submarine pipeline system
swele
the idiot
thin-walled pressure vessel
totally sealed environment
TV show
two-tier gold market
upsetting cam
variable model structure
volcanic sediment
whopper-jawed
wooden train
yard system