Backflooding
地下水逆流
🗣️ 情景例句
Don't you know it!
你说得没错。
What color is your book?
你的书是什么颜色？
One of the most famous sailing ships of the nineteenth century, the Cutty Sark, can still be seen at Greewich.
人们在格林威治仍可看到19世纪最有名的帆船之一“卡蒂萨克”号。