agone

It happened three centuries agone, yet the legend still lives.

用法提示：agone 作为副词，意为“以前”，修饰时间短语“three centuries”。

The old castle was built many years agone and now stands in ruins.

用法提示：agone 放在时间短语“many years”之后，表示“以前”。

I recall a time long agone when we would play in these fields.

用法提示：agone 与“long”连用，作副词表示“很久以前”。