vaccine-related造句

• Vaccines for the most important pet diseases last three years or longer , and so annual vaccine inoculations are needless , and can even put pets at greater risk of vaccine - related problems
  一年一次的疫苗接种是不需要的，而且将使得宠物冒着更大的危险，承受疫苗接种后所引发的相关问题。