Olfaction plays a major role in host finding and selection of malaria mosquitoes.

疟蚊主要依靠嗅觉发现寄主。

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The difference is that Philadelphia managed to avoid the soft underbelly that often lies below the big guns, thanks to their scouting department's knack for finding a host of unpolished gems.

FORBES: Magazine Article

But if the diminuitive republic went all the way, finding a venue to host the 2009 competition could prove a problem.

BBC: San Marino's big musical moment

But it is not simply a matter of an animal virus suddenly finding humans to be a congenial host, and flourishing as a result.

ECONOMIST: The American Association for the Advancement of Science