smallpox GMAT

Vaccination for smallpox is efficacious.

种牛痘防天是有效的。

Smallpox can be contained by vaccination.

种牛痘可以控制住天。

A new outbreak of smallpox occurred in 1928.

1928 年爆发了新一轮的天。

Were you vaccinated against smallpox as a child?

你小时候打过天？

The smallpox vaccine has saved many lives.

天挽救了许多人的生命。

Cases of smallpox are becoming rare.

天病例日益罕见。

In 1742 he suffered a fatal attack of smallpox.

1742 年，他染上了致命的天。

Were you vaccinated against smallpox as a child?

你小时候打过天？

A new outbreak of smallpox occurred in 1928.

1928 年爆发了新一轮的天。

In 1742 he suffered a fatal attack of smallpox.

1742 年，他染上了致命的天。

Smallpox can be contained by vaccination.

种牛痘可以控制住天。

Cases of smallpox are becoming rare.

天病例日益罕见。

Vaccination immunizes people against smallpox.

种牛痘能使人免患天。

Vaccination for smallpox is efficacious.

种牛痘防天是有效的。