Humans have an obligation to try to save endangered animals, because it is our fault that they are going extinct.

人类有义务去拯救濒临灭绝的动物，因为它们的灭绝是我们的过错。

youdao

This, I propose to offet we are going to larger purposes, bind upon us, bind upon us all, as a sacred obligation with a unity of duty hitherto evoked only in times of armed strife.

我倡议，为了更伟大的目标，我们所有的人，以一致的职责紧紧团结起来。 这是神圣的义务，非战乱，不停止。

youdao

Going strictly by the Numbers, it's better to pay down debt by starting with the obligation that has the highest interest rate.

严格按照算术来算的话，偿还债务最好是从高利率的债务开始。

youdao

"If they are not going to fulfil their obligation, we are not going to tour New Zealand, " said chairman Tauqir Zia.

BBC: SPORT | Cricket | NZ may abandon tour

"We are going to give everybody every opportunity to be consulted, we are going to listen but we are going to act within the statutory obligation that we have, " he said.

BBC: Beds, Herts & Bucks

If you hear that your bank or mortgage company is going out of business, your obligation is to continue to pay your mortgage unless you get in writing that that situation is changed.

CNN: Velshi: Please, keep paying your mortgage