这些条件便于医生追踪受感病人的传染渠道。
This facilitates the doctors' task of tracking dow3n the victim's contacts.
该传染病的一条传染渠道是小型债券保险商（monoline bond insurers），这些保险商是假设能够保全债务的专业保险公司。
One channel of contagion involves monoline bond insurers, the specialized insurance companies that are supposed to guarantee debt.
随着空调的普及，空调已成为传染疾病的传播渠道。
With the popularity of air-conditioning, air conditioning has become a channel for the spread of infectious diseases.
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