companioninadversity[misfortune];afriendwhowentthroughdifficulttimestogetherwithsomeone;fellowvictim(s);friendshipmadeduringadversity;friendshipcementedinadversity;friendsinadversity[need];testedfriend全部都有患难之交的意思。例句:Webecomecompanioninmisfortunefromthenon.从那时起,我们就成了患难之交。