安全带可以防止乘客在急刹车时受伤。

The seat belt ___prevents passengers from getting injured during sudden braking.

这种疫苗可以有效防止疾病传播。

This vaccine effectively ___prevents the spread of the disease.

安全带可以防止你在事故中受伤。

The seat belt ___prevents you from getting injured in an accident.