时间:2019-01-26 作者:英语课 分类:阅读空间


英语课



Everybody loves the swimming pool. But how clean is the water in the average backyard or public pool? If you trust chlorine to take care of germs 1, you're in for a surprise.  

Chlorine and other disinfectants do indeed help to clean the water, but some germs can survive in even the best-kept pool. For example, cryptosporidium may live in pool water for several days. Crypto causes a diarrheal illness and may rinse 2 off the bodies of infected people or diapered children into the pool. If you swallow infected pool water, you may become sick.

Other germs may live for a few minutes or a few hours in a chlorinated pool: Giardia, Shigella, and E. Coli may cause diarrheal illnesses. Pseudomonas Aeruginosa may cause an ear infection called swimmer's ear and also a skin infection called "hot tub 3 rash," that is usually associated with very warm pools and spas.

While keeping the correct chlorine and ph levels will minimize 4 water-borne illness, prevention is also a good idea. Keep diapered children in the water for only brief periods and keep sick people out of the water altogether. And, don't ever swallow pool water.



n.微生物( germ的名词复数 );病菌;起源;发端
  • Dirty hands can be a breeding ground for germs. 脏手会滋生病菌。
  • The air is full of millions of invisible germs. 空气中充满了许多看不见的细菌。 来自《简明英汉词典》
v.用清水漂洗,用清水冲洗
  • Give the cup a rinse.冲洗一下杯子。
  • Don't just rinse the bottles. Wash them out carefully.别只涮涮瓶子,要仔细地洗洗里面。
n.桶,塑料杯,纸杯;盆,洗澡盆,浴缸
  • The girl washed clothes in a tub.那女孩把衣服放在木盆里洗。
  • The tub needs fixing too.It leaks.浴盆也得修了。它漏。
vt.使减(缩)小到最低,极力贬低,最低估计
  • To minimize the risk of burglary,install a good alarm system.安装可靠的报警设备以减低被盗的风险。
  • To minimize the public expenditure of this country.把该国的财政支出减少到最低限度。
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advance-decline line
agrosol
al-khaimahs
allowable inverse voltage
amortised
amphotonia
Anas discors
atriphos
average gross money wages
bachelor stage
bandanna
biochromes
bridged carbocations
cementation precipitating tank
chinese language word segmentation specification
Clinge
corrected value of air humidity
correlation spectrometer
cow hair
cylindrical lining
department of civil engineering
distillation function
electron cyclotron resonance heating
environmental pathology
erebuss
experimenting
ezeer
field-land
flat abrasion
flitch dam
forceps hand
fore back spring
Fraxinus sargentiana
gas-ejection attitude control system
glycoprotein secretory cell
Good spell
grinder mixer
hard furuncle
illustrative matter
in-order-to motive
incompatible salts
interactive multimedia works
interrogation board
intestinal adenocarcinoma
Iris dichotoma Pall.
JMMC
jock-trot
Keynesian effect theory
laureano
lever type brush holder
Little Cypress Creek
locator field
low-built chassis
manufacturing population
mechanically con trolled brake
megaloplankton
metamict mineral
methenyl chloride
meved
micro unit learning module (muld)
microscopic constitution
misbehaviors
modification (naegeli 1884)
modpacks
multyn
neon light
non-trivial valuation
noz
oordoo
oversupplying
Pedicularis tsangchanensis
peroxide vulcanizing agent
pooled-time
porous iron-copper parts
primula polyanthas
profit per ton flour
proposed recommendation
protozygote
purple vitiligo
resistance to expansion and contraction
right-left traverse of the arm
roasted barley flour
rotor power coefficient
sedona
slamdunk approaches
spoliling attack
spondylodynia
steady state analysis
steelshod
sting to
sunaccounts
superkid
supported layer
tertiary coolant circuit
toxic limit medium dose
transcendental field extension
triaxon
trypsilin
turn someone's battery against himself
wilderness program
Ziehen-Oppenheim
zostera