ExMind ExMind
首页 帮助
打开 App
    首页/CEFR/A1/Vocabulary/US/lesson ·noun
l

lesson ·noun (TEACHING PERIOD)

Definition: a period of time when a teacher teaches people Level: A1

在 App 中打开

© 2026 ExMind. 英语学习,每天进步一点点。

Hangzhou Yigesi Network Technology Co., Ltd.