Perfect obligation
[法] 合法的债务, 具有完备手续的债务
🧩 词语组成解析
🗣️ 情景例句
I did both with Richard and Susan,
有Richard和Susan时我这样做，
He is listening to the strange noise.
他在倾听这奇怪的声音。
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。