Simple obligation
[法] 单纯债务, 无条件的义务
🧩 词语组成解析
🗣️ 情景例句
Well, you have your own tuxedo.
噢， 你有自己的燕尾服。
Aren't they students?
他们不是学生吗？
Our own warm atmosphere and the heat generated by the telescope would make it impossible to detect objects as small as planets.
地球周围温暖的大气层和望远镜散出的热量使得我们根本不可能找到比行星更小的物体。