The core of Mate is the event map, which describes what should happen when your application dispatches events of different types.

Mate的核心是事件映射，它描述了当应用程序分派不同类型的事件时，应该发生什么情况。

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Romantic types might say they seek the perfect soul mate but the revealed truth is more prosaic.

浪漫主义者们或许会说他们在追寻完美的精神伴侣，但是所揭示的真实情况表明爱情其实更加实际。

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"Bats use a lot of different types of sounds, from singing to each other to find a mate and to using echoes from their tweets to find their way around, " explained Kate Jones, joint University College of London (UCL) and Zoological Society of London (ZSL) chairwoman of ecology and biology.

BBC: Website calls on people to become 'bat detectives'