Once in a life time... I would like to travel around the world.

在一生里一定要有一次的是…我想要环游全世界。

youdao

Dog training is a business for some people, a serious hobby for others, and a once in a life time experience for many.

狗的训练对有些人是一种职业。对有些人却是一种嗜好，然而对大部分的人来说却是他一生中一个经验。

youdao

Its a rare chance coz I doubt we will hold our own concert again during NEW YEAR EVE's in the future so this might be a once in a life time opportunity and guess what?

它是一种难得的机会怎么我怀疑我们将举行我们自己的演唱会再次在除夕夜的未来，使这可能是一次生命的机会和时间猜测什么？

youdao