带团风格需要因人而异，因此这项工作是复杂多变，很具挑战性的。
Different people require different styles of tour guiding, thus making job very complicated and challenging.
文章对比中西方园林艺术的不同风格，在分析园林的各组成要素的曲折多变基础上，论证曲与直的辩证关系，从而得出“曲”是中国古典园林艺术的重要标志。
Compared with west garden art style, and based on analysis on the variability of each constitute part of gardans, the logical relationship between the bend and the straight ness is expounded.
伟大著作是由其风格和内容来衡量的，而不是其换语法的修饰和多变。
GREat books are weighed and measured by their style and matter, and not by the trimmings and shadings of their grammar.
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