On hearing that, I stepped back, let the door close, and allowed him to reopen the door, not using the automatic control this time.
听到这话,我退后一步让门关上,让他重新开门,不用门的自动控制装置。
After decades of stagnation in malaria control, stepped up efforts are finally producing impressive results, including striking drops in transmission rates and deaths.
疟疾控制工作在数十年中停滞不前,强化的努力现在终于产生了显著的成果,包括传播率和死亡人数大幅度下降。
When disease control efforts are stepped up, especially through the mass administration of medicines, causative agents are put under enormous stress, which is expressed as selective pressure.
当疾病控制努力逐步加强,尤其是通过大规模施用药物来控制疾病时,病原体被置于巨大的选择压力之下。
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