Alveolization
岩石表面凹窝
🗣️ 情景例句
Which tourist attractions are the best?
哪一个旅游景点最好？
Do you have anything to declare for customs?
你有一些东西申报海关吗？
Doctor, I'm not feeling well, she said. I often feel tired.
“医生，我感到不舒服，”她说，“我经常感到疲倦”。