bill of health

例句：

1. 1. The veterinarian issued a bill of health for the animal.
   兽医为这只动物颁发了健康证明。
2. 2.Before leaving the country, they must obtain a bill of health from their embassy.
   离开该国前，他们必须从大使馆获得健康证明。
3. 3. The family was required to present a bill of health before entering the new city.
   家庭在进入新城市之前需要出示健康证明。