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alone；for lonely; because only; since simply; as
more dangerous mild fatal spreading more fast.
Asked Teste Trouble Doubted
to kill all the birds in an area where bird flu has been discovered to kill all the chickens to kill all the birds to kill all the chickens when bird flu has been discovered
treatment diagnosis doubt choice
work home school hospital
Yes，please Yes，he'd love to I'm afraid he can't No problem
point number spread value
person matter thing illness
regular normal usual common
normal; common usual; ordinary common; usual ordinary; normal
America relies too much on foreign suppliers the demand of flu vaccines is high this year quality problem is a serious problem in flu vaccine production the supply of flu vaccines is rather weak and America has no back-up measures to make it up
welcome .outbreak success injury
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