Database Introduction：

JoVE is the world’s first PubMed-indexed scientific video journal.

Beijing Wanwu Keledge Tech.

MET World Language Learning Center is a language learning knowledge service platform carefully created by Yuetu Culture Group and China Publishing Group World Book Publishing Guangdong Company thro

The Nature Portfolio is a collection of interdisciplinary research and review journals dedicated to understanding, exploring, and sharing science since 1869.

New Oriental Multimedia Learning Library is a "one-stop" comprehensive learning platform launched by New Oriental.

The Oxford English Dictionary Online offers users the most complete, up-to-date, and extensive dictionary from Oxford.

Oxford Journals Collection: a unique package that provides access to 395 high-quality journals in Medicine, Life Sciences, Humanities, Social Sciences, Mathematics and Physical Sciences, and Law.

Oxford Scholarship Online (OSO) is a powerful digital library developed by Oxford University Press, dedicated to collecting the finest academic monographs published by Oxford University Press.