Cambridge FCE 2020 Wordlist. 剑桥三级青少年英语FCE 2020词汇库.
Cambridge English FCE Wordlist 2022. Cited from the Cambridge English Website.
剑桥五级英语的第三极(B2) 2022. 词汇来之剑桥英语官方网站.
College English Test. CET 4, 6 level English Wordlist 2022. 国内大学四级六级英语词汇表 2022.
Generation Z English CET 4, 6 level. Z 世代英语，大学四级，六级.
Cambridge KET and PET 2020 Wordlist. 剑桥青少年英语KET和PET2020词汇库.
Cambridge English Assessment Test. KET and PET wordlist 2020. Wordlist taken from Cambridge English Website. Cross-referenced with
Guangzhou Primary School English Wordlist 2022. Cited from the GZ P3-6 English textbooks. Included here is the wordlist from Cambridge junior Starters, Movers, and Flyers 2018-22.
剑桥五级英语的第一二级(A1-A2, B1). 与广州小学英语词汇对照. 小学英语词汇取自广州小学3-6年级英语课本 2012-22. 这里也包括剑桥少儿123级词汇.