我知道有一天你也想来这里度假！我们一乘火车到达德国，克莱夫和他的妻子就离开了我们。

I know you want to come here on vacation too one day! Clive and his wife left us once we got to Germany by train.

youdao

她像只小云雀般为自己的工作歌唱，每天都满怀希望地对自己说：“我知道有一天我一定会学好音乐，只要我乖。”

She sang like a little lark about her work, and day after day said hopefully to herself, "I know I'll get my music some time if I'm good."

youdao

我知道有一天我们的爱必定终结可是。

I know that one day our love will end but.

youdao

Maybe someday. I don't know.

也许有一天我会。我不知道。

美国的出版市场 - SpeakingMax英语口语达人