Dcor
abbr. Defense Committee on Research (USAF) 防御研究委员会（美国空军）
🗣️ 情景例句
The welcome sign is up:
欢迎的标语已经弄好了：
No. Can't you see that rocket is almost falling down.
不。你不知道火箭快要倒下来了吗？
It's always hot in June, July and August.The sun shines every day.
6月、7月和8月的天气总是炎热的，每天都出太阳。