他提到，感染加州患者的可能是一种来自亚洲的流感病毒，进而南下；但病毒也有可能源自墨西哥，随后北上传播。
He mentioned the possibility that the California victims could have been infected by a flu strain from Asia that traveled south, or that the flu was generated in Mexico and went north.
旅游推广预算从2005年不到600万美元增加到今年的3000万美元（主要源自一笔来自烟草调解的一次性资金注入）。
The budget for promoting it grew from less than $6m in 2005 to $30m this year, thanks largely to a one-off infusion of cash from a tobacco settlement.
取而代之，大多数推荐引擎采用了倒推的工作方式，它们推荐所凭借的信息并非来自艺术作品，而是源自艺术作品的受众。
Most recommendation engines work backward instead, using information that comes not from the art but from its audience. (See the 50 best websites of 2009.)
应用推荐