She would like to talk to people one to one.

她想和人们一对一地谈话。

《柯林斯英汉双解大词典》

I can count from one to one hundred.

我能从一数到一百。

youdao

He teaches one-to-one.

他一对一地个别教学。

《牛津词典》

She also linked it to a one to two point increase in the number of women in the labor force.

VOA: special.2010.03.04

Listen to how quickly Yeats modulates from one feeling, one image, to another in these really very short, quick, three-beat lines.

听一听叶芝是怎么快速地,从一种情绪，一个情景中，转换到另一个里去的,就在这些三音韵的短诗句中。

耶鲁公开课 - 现代诗歌课程节选

This completely could change if you were to flip from one to the other conformation which can happen in chemical reactions.

在化学反应中,它们的形状,可以从一种折叠成另外一种。

麻省理工公开课 - 化学原理课程节选

B. 2549 is not limited to a one to one conversation between two specific people.

CNN: Sponsor: Arizona bill isn't aimed at Internet trolls

Walter Thompson veteran Schroer hired away last year to push one-to-one marketing in Asia.

FORBES: Magazine Article

This provides two value propositions, one to the developers and one to the customers.

FORBES: Apple's Mac OS Lockdown To End Developer Independence