Pecm
abbr. passive electronic countermeasures 被动电子对抗，无源[消极]电子干扰; Preliminary Engineering Change Memorandum 初步工程更改备忘录（美国空军）; processing element control memory 处理单元控制存储器
🗣️ 情景例句
His concert brought the house down.
他的音乐会博得满堂彩。
Jack is up and about now.
杰克病后复原了。
You're away too far.
你太过分了。