The new law released employers from their obligation to recognize unions.

　　新的法律免除了雇主承認(rèn)工會的義務(wù)。

　　They felt under no obligation to maintain their employees.

　　他們覺得沒有義務(wù)為員工提供生活費(fèi)。

　　We have a moral obligation to protect the environment.

　　我們有道義責(zé)任保護(hù)環(huán)境。

　　Her moods oscillated between depression and elation.

　　她的情緒時(shí)而抑郁，時(shí)而亢奮。

　　His supporters have reacted to the news with elation.

　　他的支持者聽到那條消息后興高采烈。

　　Universal celebrations are held and the whole nation is in elation.

　　普天同慶，萬眾歡騰。