Etfs
abbr. ECM (electronic countermeasure) transmitter frequency setup 电子对抗发射机频率调定; ECM transmitter frequency setup 电子对抗发射机频率调定
🗣️ 情景例句
This job is back-breaking work.
这份工作强度很大。
My brother is not quite twenty-five.
我的兄弟不够25岁。
The woodcutter replied: I'm going to cut this tree down.
伐木工人回答说：“我要把这棵树砍倒。”