You forget that I was a medical student once upon a time.

Once upon a time, there was a great man who married the woman of his dreams.

从前, 有个大男人和他的梦中情人结了婚.

Once upon a time a young Kansas boy dreamed of traveling the world.

初次跨文化接触曾经有个堪萨斯男孩梦想着周游世界.

Once upon a time , there lived a woodman and his wife.

很久以前, 有一个樵夫和他的妻子.

Once upon a time, there lived a beautiful princess.

从前, 这里住着一位美丽的公主.

Once upon a time, there a monster without a name.

从前,在某个地方, 有头没有名字的怪物.

Once upon a time, there were two merchants, who were friends.

从前, 有两个大商人, 他们是朋友.

Once upon a time there was a poor boy who lived in Denmark.

从前有个穷苦的孩子住在丹麦.

Once upon a time, a guy kept a pet monkey at home.

从前, 一个人家里养着一只小猴.

Once upon a time there was a little fat comfortable grey squirrel, called Timmy Tiptoes.

很久以前有只胖胖的、生活宽裕自在的灰色小松鼠, 叫提米脚尖儿.

Nearly everyone must endure at least once in a lifetime.

几乎每个人一生中至少要体验一次.

Since it's a once-in-a-lifetime thing, I want everything to go right.

一生一次的事情, 总是弄得正正经经的.

It's a once in a lifetime chance.

这是一生难得的机会.

If you bought a car, it was a once-in-a-lifetime investment.

如果你买了辆车, 这就是你一生只此一次的投资.

With acquaintances once in a lifetime is often considered enough.

一般认为,与相识的人握手,一生中一次就够了.

He's truly a once-in-a-lifetime dog.

对我而言,他真正是一生中才遇到一次的狗.

That would be a once-in-a-lifetime holiday everybody desires.

那一生才有一次的假期可是人人都渴求的.

Louis and Sarah are preparing for a once-in-a-lifetime trip to Italy.

路易斯和莎拉正在为一生一次的意大利旅行做准备.

It's a once-in-a-lifetime opportunity.

这是一生中唯一的一次机会.

This would be my once-in-a-lifetime dive.

这将是我终生难再的一次跳水.

Youth comes but once in a lifetime.

青春一生只有一次.