When you have such one friend, cherish your friendship for life long.

当你有这样一个朋友时，请珍惜你们的友谊。

youdao

Should you pick only one friend from each phase of your life, or more than one?

你应该在人生的每个阶段选择一位朋友，还是不止一个朋友？

youdao

Since finishing my studies at Harvard and Oxford, I've watched one friend after another land high-ranking, high-paying Wall Street jobs.

自从我完成了哈佛和牛津的学业，我看着一个又一个朋友在华尔街拿到了薪资丰厚的高职。

youdao

One friend said: "Margaret Mead was not going to let a little thing like death stop her."

VOA: special.2010.01.17

For example, you could be speaking with one friend about a situation where another friend was in,

例如，你可能跟你朋友分享你另一个朋友的情形。

That's what课堂 - SpeakingMax英语口语达人

No friend that I've ever talked with is one that I actually would want to spend eternity talking to.

我交谈过的朋友中没有一个,是我想与之永远交谈的。

耶鲁公开课 - 死亡课程节选

One friend said he had an office chair on wheels and it started to move around.

BBC: Iran earthquake: Eyewitnesses tell of fear and confusion

The core concept is this: links of interest shared by one friend get clicked-though by others.

FORBES: Social News and clickthroughs

Find one friend, one colleague, one person in your family, -- shake them up.

WHITEHOUSE: Remarks by the First Lady at Campaign Event