Acda
abbr. 军备监督和裁军署（Arms Control and Disarmament Agency）
🗣️ 情景例句
Can we help?
我们可以帮忙吗？
How much is it by air mail?
航空信要多少钱？
The World Trade Center, an office building for over 1200 firms employing about 50,000 people, is even higher at 411 metres.
世界贸易中心要高得多，有411米。它是一座办公大楼，楼里有1，200多家公司，大约有5万雇员。