如果这个方法奏效的话，它能给博茨瓦纳以及其他地区的农民提供一种低成本、可持续的手段去保护牲畜，同时也能避免狮子被杀死。
If the method works, it could provide farmers in Botswana—and elsewhere—with a low-cost, sustainable tool to protect their livestock, and a way to keep lions safe from being killed.
我们的课程总共囊括了二十种不同语言的内容，总时长达两万个小时，这保证你能学到可立即使用的语言技能。
Our courses, totalling 20,000 hours of content in 20 different languages, guarantee you language skills you can use right away.
服务提供者节点能代表商业实体的服务，或者它甚至能代表可重用的子系统的服务接口。
A service provider node can represent the services of a business entity or it can simply represent the service interface for a reusable subsystem.
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