Undation
陆地或海底大面积的上升或下降运动
🗣️ 情景例句
Please accept my apology for not neeting you for lunch Tuesday.
我很抱歉，星期二没有与你一起共进午餐。
My parents speak English perfectly.
我的父母能流利地说英语。
I can hear something! said Lucy.Does anybody live on this island?
“我听到什么东西了！”露茜说，“岛上有人居住吗？”