When his cows calve each year he keeps one or two calves for his family.

每年他的母牛产犊时，他都为家里留下一两头。

《柯林斯英汉双解大词典》

I'll say 'One, two, three, go!' as a signal for you to start.

我喊“一、二、三，开始！”作为你开始的信号。

《牛津词典》

For most events, tickets cost one, two or three yuan.

对于多数比赛项目而言，门票要1元、2元或3元。

《柯林斯英汉双解大词典》

In two thousand two the group had suggested such screening tests every one to two years for women forty and older.

VOA: special.2009.11.18

How many people vote for that this is a reversible process? I've got one vote back there two votes, three votes, four votes. Anybody else?

有多少人认为,这是一个可逆过程？有一个，两个，三个,四个，还有别的人吗？

麻省理工公开课 - 热力学与动力学课程节选

so you can see that there is going to be two sets in antibonding, three sets in bonding for a net of one, giving us the single bond.

因此你能看到,反键轨道上有两组，三组成键，得到一组净成键，所以成的是单键。

麻省理工公开课 - 固态化学导论课程节选

This is an interesting one for two reasons.

FORBES: When To Fire Yourself

Along the way, Baker has run or overseen six campaigns for President: one for Ford, two for Ronald Reagan and three for the elder George Bush.

CNN: Franchise Player

The young man had several arrests, including one for assaulting two police officers in Brooklyn in 2010.

WSJ: NY dismemberment defendant dons trash bag in court