adj.有系统的；分类的；体系的；有条理的
He is making a systematic study of the subject. 他在对那一科目作系统的研究。
The school offered a systematic course in reading. 学校提供系统的阅读课程。
Science means systematic knowledge possessed as a result of practice and study. 科学是由于实践和研究的结果而获得的系统知识。
He's very systematic in all he does. 他做一切事情都很有条理。
She went about her work in a systematic and deliberate manner. 她干工作时有条理而不慌不忙。
adv.有系统地；有条理地
n.分类系统；分类学
adj.无体系的；无系统的；无组织的
生物分类学,生物系统学
生物分类学,生物系统学
