Dcor
abbr. Defense Committee on Research (USAF) 防御研究委员会（美国空军）
🗣️ 情景例句
Well, when do you think you can come over to work?
你想什么时候开始工作呢？
He came at a bad time.
他来的不是时候。
He was the man who climbed the Leaning Tower of Pisa and dropped various weights from the top,
他就是那个曾经爬上比萨斜塔，从塔顶向下抛掷各种重物的人；