They have an international obligation.

他们有国际义务。

youdao

The same international community that felt obligated to spend hundreds of billions rescuing financial systems should also feel an obligation to rescue people in such desperate need.

觉得有义务投入数千亿美元拯救金融体系的国际社会，也应该意识到有义务拯救身处如此绝望穷困的人类。

youdao

This imposes an obligation to move forward as expeditiously and effectively as possible, individually and through international assistance and co-operation, to the maximum of available resources.

这便要求各缔约国有义务单独或通过国际援助和合作，最大限度使用现有资源，尽可能迅速有效的向前推进。

youdao

It may be difficult for French governments to defy both strikers and public opinion, but they now have an international obligation to keep the single market in operation.

ECONOMIST: Britain is not the only awkward partner in Europe

Al-Haq's case is that Britain has an obligation, under international law, not to assist Israel because it says Israel has interfered with the Palestinian right to self-determination, has acquired territory by force and has committed war crimes.

BBC: UK sued over Israeli arms sales

An idea also endorsed by many scholars of international law, this means that all countries have a right, indeed an obligation, to try or extradite those accused of the gravest crimes no matter where they are committed.

ECONOMIST: Bringing the general to justice