Mathematics is an important basic course in middle schools.

数学是中学一门重要的基础课程。

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Microbiology is an important basic course of biological subject.

微生物学是生物专业的一门重要基础课。

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Biochemistry is an important basic course of all majors of life science.

生物化学是生命科学各专业的一门重要的专业基础课。

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The basic problem is that there were some 100, 000 bondholders around the world (some more important than others of course) and these 100 people had to run around to some goodly portion of them to explain what was going to happen and to get their agreement to it.

FORBES: 100 iPads in the World's Largest Financial Deal Ever