... 任意之债 voluntary obligation 简单之债simple obligation 选择之债 alternative obligation ...
双语例句
1
But figuring out when to disclose a personal obligation that takes you away from work-and how much detail to give-isn't always simple.
但要弄清楚在什么时候披露需要请假的私人事务，以及透漏多少细节，并不是件简单的事情。
2
The prescript of the affiliated obligation is simple, we should nail down the forms of it, improve the legal efficacy of it, and nail down the duty form and the principle of disobeying it.