其次，学校的每一门教育科目都是系统的，如语文、数学、科学和哲学。
Secondly, every subject of education in school is systematic, such as Chinese, mathematics, science and philosophy.
每一门教育科目都由学校系统地开设，例如语文、数学、科学和哲学。
Every subject of education in school is systematic, such as Chinese, mathematics, science and philosophy.
基础科学丛书包括16门学术专题，每一门都是一部完整的资料书。
The Basic Science Series includes 16 scientific topics, each of which is a complete information book.
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