Overall complexity results for L2 English texts by CEFR level ranked in a descending order.

Overall complexity results for L2 English texts by CEFR level ranked in a descending order.按欧洲语言共同参考框架（Common European Framework of Reference for Languages, CEFR）等级划分的第二语言（L2）英语文本的整体复杂度结果，均按降序排列。