Secon
abbr. secondary electron conduction orthicon 次级电子导电正析像管
🗣️ 情景例句
Dean Rafer called me today.
Rafer主任今天打电话给我。
The school is two miles straight ahead.
那学校一直向前两英里。
Good morning, Mr. Blake.
早上好，布莱克先生。