1、专心于英语短语：“devote to”、“intent on”、“Concentrate on”。
2、示例：
（1）We should devote oneself to to change these to restrict an element.我们应该致力于改变这些制约因素。
（2）A peaceful demonstration had been hijacked by anarchists intent on causing trouble.和平示威已遭到蓄意制造事端的无政府主义者的操控。
（3）They will concentrate on teaching the basics of reading, writing and arithmetic.他们将集中教授阅读、写作和算术基础知识。
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