“脊髓”造句

在巴西脊髓灰质炎实际上已经根除。
Polio has been virtually eradicated in Brazil.

脊髓灰质炎疫苗挽救了数以百万计的生命.
The polio vaccine has saved millions of lives.

1995年,已消灭脊髓灰质炎.
By 1995 poliomyelitis had been totally eliminated.