Schools, churches, and parents must be the primary carriers of this message.
学校、教堂和家长应该承担起传输这一信息的主要责任。
Cats are the primary carriers of Toxoplasma, though they rarely exhibit symptoms.
猫是弓形虫的初级携带者，但它们极少出现症状。
The first rule to be observed when packaging for export is to consider the entire journey, including the short hauls to and from the primary carriers.
出口包装须遵守的第一个规则就是要照顾到货物运输的全程，包括主运程前后的短途运输过程。
Primary groups, then, serve both as carriers of social norms and as enforcers of them.
因此，初级群体既是社会规范的载体，又是社会规范的执行者。
But it plans to drop ultra-low fares on new routes and may move some flights to primary airports, which are wooing low-cost carriers to boost flagging growth.
但是，它计划取消新路线的超低票价；也许会让一些班机停靠在主要机场。这些主要机场迫切需求廉价航空提振日益惨淡的乘客增长率。
Primary prophylaxis with lamivudine of hepatitis B virus reactivation in chronic HbsAg carriers with lymphoid malignancies treated with chemotherapy.
B型肝炎病毒流行病学，疾病负担，治疗，以及目前和新出现的预防和控制措施。
Primary prophylaxis with lamivudine of hepatitis B virus reactivation in chronic HbsAg carriers with lymphoid malignancies treated with chemotherapy.
B型肝炎病毒流行病学，疾病负担，治疗，以及目前和新出现的预防和控制措施。
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