In the chicken house, there were four old chickens, waiting to be killed for Sunday's dinner.

鸡舍里有四只待宰的老母鸡，用作星期天的晚餐。

youdao

Young children are beginning their formal education sometimes as early as four years old.

幼儿有时早在四岁时就开始接受正规教育。

《牛津词典》

Surgeons have successfully transplanted a liver into a four-year-old boy.

外科医生成功地给一个四岁的男孩移植了肝脏。

《牛津词典》

Scientists know that some of the Bristlecone pines in northern California are also more than four thousand years old.

VOA: special.2009.05.12

I'm sixty-four years old and I haven't had one second of genius in my entire life.

我已经六十四岁了,这辈子都没有哪怕一秒钟灵光乍现的时候

耶鲁公开课 - 聆听音乐课程节选

Because as a young, four or five-year-old company, if we're trying to attract somebody from a company that's been around since before I was born, that is in the computer industry, that's pretty hard.

因为作为一个只有四五岁的年轻公司，如果我们想要吸引大家的注意,尤其是在公司创立之前，这在电脑行业是很难的。

斯坦福公开课 - 戴尔CEO-Michael.Dell谈创业和发展课程节选

One was two years old, one was one years old, one four years old.

NPR: Iraq Finishes Own Investigation of Deaths in Haditha

Females start breeding at four months old and give birth to litters of a half-dozen offspring about four times per year, he said, meaning any poison has to outpace reproduction.

WSJ: MTA Sets New Tactic in Rat War

The four injured are a 39-year-old woman, a four-year-old boy and two girls aged 10 and 12.

BBC: Cornwall speedboat crash: Man and daughter killed