1·Once time became the problem -- not the vanilla ice cream -- the engineer quickly came up with the answer: vapor lock.
一旦时间变成问题-而不是香草冰激凌-工程师很快找到答案：气阻。
2·It is time, once again, to contend with racism.
又是对付种族主义的时候了。
—— 《柯林斯英汉双解大词典》
3·Since the success of her novel, people shake her hand who once wouldn't have given her the time of day.
自从她的小说获得成功之后，曾经懒得答理她的人也跟她握起手来。
—— 《牛津词典》
4·There was time enough to obliterate memories of how things once were for him.
有足够的时间来抹掉他对过去的记忆。
—— 《柯林斯英汉双解大词典》
5·Once upon a time there was a beautiful princess.
从前，有一位美丽的公主。
—— 《牛津词典》
6·Just for once he arrived on time.
只有这一次他按时到了。
—— 《牛津词典》
7·Traditional stories make use of formulaic expressions like 'Once upon a time...'.
传统故事采用“从前…”一类的套语。
—— 《牛津词典》
8·This was payback time. I've proved once and for all I can become champion.
这是回报之时。我已经一劳永逸地证明我能成为冠军。
—— 《柯林斯英汉双解大词典》
9·Once upon a time there was a princess...
从前有一位公主…
—— 《牛津词典》
10·Once upon a time, they weren't even boxes.
很久以前，它们甚至都不是盒子。