To form these preposition, you can just put the preposition with the definite articles.
大家应该也理解了，前置词就是介词加上定冠词。
Definite and indefinite articles are unaffected by gender (the actor, the actress; a bull, a cow.)
定冠词和不定冠词不受性别的影响(the actor,the actress；a bull, a cow)。
As I've already told you, articles can be classified into definite articles and indefinite articles.
我早就讲过，冠词可以分为定冠词和不定冠词。
The rules shall use the precise and concise language, and contain the definite, specific and operable articles.
第七条 规章用语应当准确、简洁，条文内容应当明确、具体，具有可操作性。
The rules shall use the precise and concise language, and contain the definite, specific and operable articles.
第七条 规章用语应当准确、简洁，条文内容应当明确、具体，具有可操作性。
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