tên các đô thị lớn :Niu I-ooc, Oa-sinh-tơn, Ốt-ta-oa, Si-ca-gô
niu-looc
oa- sinh-ton
si-ca-go
phi-la-den-phi-a
di-to-roi
What does the doctor recommend to eat?
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What do happy people do?
What kind of food will help people to keep fit and stay healthy?
