Tilasite
氟砷钙镁石
🗣️ 情景例句
Dad ... Robbie. When did you come?
爸爸……Robbie。你们什么时候来的？
What do you do for relaxation?
你做什么消遣？
All the students are expert drivers, but before they drive any of the buses, they will have to pass a special test.
所有的学生都是开车的能手，但在驾驶公共汽车之前，他们必须通过一项专门测验。