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
But, as a working woman,
但是就职业妇女来说，
When is the most convenient time for us to meet?
我们什么时候见面最方便呢？
Thank you very much.
非常感谢。