重点讲解：
1. the influence on
影响；作用；
eg. The influence of climate on crops are self-evident.
气候对农作物的影响是不证自明的。
eg. On the other hand, the influence on air quality is relevant only in the immediate vicinity of the emission source.
另一方面，对空气质量的影响只限于排放源经过的邻近地区。
2. think about
考虑；想；认为；
eg. What do you really think about it?
你到底对这事怎么看？
eg. However, research is changing the way people think about chocolate.
但是许多研究正在改变人们对巧克力的看法。
3. the introduction to
引言；序言；导论；简介；
eg. Ellen Malos, in her introduction to 'The Politics of Housework', provides a summary of the debates.
埃伦·马洛斯在她为《家务政治学》一书所作的序言中对这些争论进行了总结。
eg. The introduction to the book is extremely brief.
这本书的前言极其简短。