从具体到抽象、特例到一般性原则是最简单的书写方法。
It is easiest to move from the concrete to the abstract, from the particular instance to the general principle.
案例教学是一个从具体到抽象，从抽象到具体的双向思维过程。
Case system is a two-way thought process, from concrete to abstract and from abstract to concrete.
梳理其从具体到抽象的演变过程，顺理成章地破译其祝福喜庆的文化意蕴。
Its development course from concrete to abstract is arranged and its wishes and joyous (cultural) connote is explained naturally.
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