vaccination against typhoid造句

例句与造句

1. In addition, there was also a mass vaccination against typhoid.
2. Doctors Without Borders said officials in Hunan and Hubei provinces in south-central China could not proceed with vaccinations against typhoid and other diseases prevalent in the area because emergency government-run clinics were closing due to lack of funds.
3. It's difficult to find vaccination against typhoid in a sentence. 用vaccination against typhoid造句挺难的