F-f cavity preselector
[电] 射频空腔预选器
🧩 词语组成解析
[计] 预选器, 预选程序
🗣️ 情景例句
this weekend?
这个周末？
The eyes of the nation are upon the government.
国民的目光都注视着政府。
Oh, hello. Could I speak to Jim, please?
喂，可以让吉姆接个电话吗？