相关例句

• New vaccines are being developed all the time. (新疫苗一直在研发中。)
• The vaccines can prevent many diseases. (这些疫苗可以预防很多疾病。)
• Some people are hesitant to take vaccines. (一些人对接种疫苗犹豫不决。)
• Vaccines play a crucial role in public health. (疫苗在公共卫生中起着至关重要的作用。)
• Scientists are constantly improving vaccines. (科学家们在不断改进疫苗。)
• The introduction of vaccines has reduced the incidence of certain diseases. (疫苗的引入降低了某些疾病的发病率。)
• These vaccines need to be stored at a proper temperature. (这些疫苗需要在合适的温度下储存。)
• Many countries are promoting the use of vaccines. (许多国家正在推广疫苗的使用。)
• Vaccines are one of the greatest achievements in medical science. (疫苗是医学科学最伟大的成就之一。)
• Some vaccines require multiple doses. (一些疫苗需要多次接种。)