1PHRASE 在极端情况下;在绝境中 If someone or something is in extremis, they are in a very difficult situation and have to use extreme methods. 在极端情况下;在绝境中 [formal]
Yet now he was here, in extremis, to seek an alliance.
然而现在他就在这里,在绝境中寻求联盟。
The use of antibiotics is permitted only in extremis.
只有在万不得已的情况下才允许使用抗生素。
2PHRASE 弥留之际 You can say that someone is in extremis when they are very ill and likely to die. 弥留之际 [formal]