After the 1960 s, China began to inoculate BCG, pertussis, diphtheria, tetanus, measles and poliomyelitis vaccines.六十年代后, 中国开始在大、中城市接种卡介苗 、 百日咳 、 白喉 、 破伤风 、 麻疹、脊髓灰质炎的疫苗的工作....a program to inoculate every child in the sta...
A corps of doctors arrived to inoculate the recruits.一队医生来给新兵打防疫针.After the 1960 s, China began to inoculate BCG, pertussis, diphtheria, tetanus, measles and poliomyelitis vaccines.六十年代后, 中国开始在大、中城市接种卡介苗 、 百日咳 、 白喉 、 破伤风...
People are beginning to question the old dogmas.人们开始质疑旧的信条.Religious dogmas often include strong sexual taboos and can create in children the impression that sex is sinful.宗教教义中经常包含严格的性禁忌，这会给儿童留下“性是罪恶”的印象。Dogmas are at t...
A volcano erupted and propelled rocks high into the sky.火山爆发,把无数的石块抛向天空.His addiction to drugs propelled him towards a life of crime.他吸毒成瘾使他走上犯罪的道路.This is a mechanically propelled vehicle.这是一台机械推动的车辆....