Once you have tasted life in southern California, it takes a peculiar kind of masochism to return to a British winter.

一旦尝试过南加利福尼亚州的生活，只有某种怪异的自虐狂才会想要返回寒冷的英国。

《柯林斯英汉双解大词典》

Once being in danger of life, he always had a clever idea of how to escape.

一旦遇到生命危险，他总能灵机一动想出逃脱的方法。

youdao

An episode of major depression may occur only once in a person's lifetime, but more often, it recurs throughout a person's life.

重度抑郁发作可能在一个人的一生中仅出现一次，但更经常的是，它在一个人的一生中反复出现。

youdao

My father, who I barely knew -- I only met once for a month in my entire life -- was said to be a non-believer throughout his life.

WHITEHOUSE: National Prayer Breakfast

Once the support and fund-raising system is in place, it can take on a life of its own.

CNN: Not so Fresh Polls

Rome was not built in a day and trying to completely change your financial life all at once is self-defeating.

FORBES: 5 Ways To Make Your New Years Resolutions Stick