used for saying how much time has passed since something happened 以前;从前 The Vietnam War ended over 30 years ago. 越南战争结束于30年之前。
How long ago did this happen? 这事情多久之前发生的?
I don't know where he is – he was here a minute ago. 我不知道现在他在哪儿,刚才他还在这儿。
It was ages ago that I saw Mick. 我很久没见到米克了。
long ago : Long ago in a far-off land, there was a king called Midas. 很久以前,在一个遥远的地方,有个国王叫做米达斯。
Synonyms and related words