Hydrofluoric
a. 氢氟酸的
🗣️ 情景例句
Thanks, Mrs. Stewart.
谢谢， Stewart太太。
He has that book, doesn't he?
他有那本书，是吗？
Up to now, Mr.Scott has sent a great many requests for spare parts and other urgent messages from one garage to the other.
到目前为止，斯科特先生从一个汽车修理部向另一个发送了大量索取备件的信件和其他紧急函件。