很久以前用英文怎么说once
时间：
"Once"在英语中表示“一次，曾经”。它来源于中世纪的古英语，最早出现在13世纪的文献中。
一些例句：
Once upon a time, there was a prince who pved in a castle.
(很久以前，有一位王子生活在城堡里。)
I will only eat this cake once a year.
(我一年只吃一次这个蛋糕。)
I've only seen that movie once.
(我只看过那部电影一次。)
一些例句：
Once upon a time, there was a prince who pved in a castle.
(很久以前，有一位王子生活在城堡里。)
I will only eat this cake once a year.
(我一年只吃一次这个蛋糕。)
I've only seen that movie once.
(我只看过那部电影一次。)