单词学习：ventilation 名词
ventilation
/ˌventɪˈleɪʃn/
通风；空气流通；公开讨论
Good ventilation in the classroom is essential, as emphasized by Teacher Gu.
正如顾老师强调的，教室里的良好通风至关重要。
单词卡片
卡片已就绪
