a covered,typically electrically heated,container filled with earth or compost,used for germinating or raising seedlings
种子发生罐(尤指用电加热、内装土壤或肥料、用来使幼苗发芽或发育的有盖容器)。
a person who spreads and promotes an idea,theory,or branch of knowledge
(观点、理论或知识的)传播者,宣传者
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a propagator of the doctrine .该信条的传播者。
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propagatorn.种子发生罐;传播者;宣传者
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propagationn.增殖;繁殖;传播;宣传;遗传;蔓延