I heard four or five loud bangs.

我听到四五声巨响。

《柯林斯英汉双解大词典》

I am the youngest of four sisters.

我是四姐妹当中最小的。

《牛津词典》

My dad took us there when I was about four and I remembered it fondly.

我爸爸在我四岁左右时带我去过那里，想起来很愉悦。

《柯林斯英汉双解大词典》

Their music set records. Their first four songs were "I Want You Back","ABC", "The Love You Save" and "I'll Be There."

VOA: special.2009.07.05

Three is the smallest one, and I'm going to compare four games twelve, which is going to give me four. And then what do?

然后将4和12进行比较，得到4是小的一个,那么下面怎么做呢？,将12与30进行对比，12是小的一个？

麻省理工公开课 - 计算机科学及编程导论课程节选

I thought London gives me enough to do for the next four years while I am studying to have a life.

我觉得在我学会在这里生活的时候，伦敦给予了我足够在未来四年里可以做的事情。

世界就是我的故乡 - SpeakingMax英语口语达人

This weekend I got four chargers so I can keep it charged everywhere I go and a land line so I can actually make phone calls.

FORBES: Connect

"They asked me how many days it had been since I had eaten, I said four days - I thought they were being compassionate, " he was quoted as saying by the Associated Press.

BBC: Freed doctor 'tortured in Libya'

By the time you get to the A list, you should have several job offers, so you can say to the A companies, I have four offers, but I really want to work for you.

FORBES: The Shortest Route To A New Job