20150818 【每日口說綀習】(bilingual)

The heightened workout a bilingual brain receives
throughout its life can also help delay the onset of diseases,
like Alzheimer's and dementia
by as much as five years.

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bilingual = two or more language
bilingual education

delay
I am sorry that i've delayed so long.
The accident delayed the train for two hours.
My doctor advised me to give up smoke without delay.

dementia
Alzheimer