Treasury obligations
un. 国库债务
🧩 词语组成解析
n. 义务；债务；承付款项（obligation的复数）
🗣️ 情景例句
It leaves at 5:20.
五点二十分开。
In prosperity caution, in adversity patience.
处顺境时要小心，处逆境时要耐心。
He can get up for about two hours each day, but you must keep the room warm.
他每天可以起来两个小时，但您必须保持房间温暖。