Vibrographing
振动测量
🗣️ 情景例句
Good morning, sir. May I help you?
早安，先生。能为您服务吗？
I'm sorry. Am I keeping you awake?
对不起。我吵得你睡不着了吗？
2 Which subjects do you like reading about in newspapers, magazines and books?
2。你喜欢读报纸、杂志和书籍里的哪些学科方面的内容？