问题描述：
这里为什么要用TO,语法上如何解释
1 what was the purpose of the study
(1) to analyse the dynamic interaction between people and resources and the process of degradation the rehabilitaion of the watershed
(2) to assess the local socio-economic conditions
在(1)(2)一开始,句子的动词前面都加to了,例:to analyse\to assess 为什么,用动名词可以吗?
请详解之
1 what was the purpose of the study
(1) to analyse the dynamic interaction between people and resources and the process of degradation the rehabilitaion of the watershed
(2) to assess the local socio-economic conditions
在(1)(2)一开始,句子的动词前面都加to了,例:to analyse\to assess 为什么,用动名词可以吗?
请详解之
问题解答：
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