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
What are you going to do?
你打算读什么？
Then,it's usually time to wake up my little brother.
然后，通常是我弄醒我的弟弟的时间。
But other suns, stars as the astronomers call them, are bound to have planets like our own,
但是，其他的太阳，即天文学家所说的恒星，肯定会有像我们地球一样的行星。