Class B From March to May, 2022, China Foreign Language Teaching Materials and Teaching Methods Research Center and Shanghai Foreign Language Education Publishing House jointly hosted the second national college students' English vocabulary competence competition, which is a class B professional competition recognized by Jiangsu Higher Education Association and also a class B competition recognized by the school. Vocabulary is the basic element of English learning and communication. Learning English is inseparable from vocabulary. Vocabulary, like bricks for building a house, is the most basic and indispensable material and plays an important role in language and cultural communication.