A third of the population is living at or below the poverty line.

三分之一的人口生活在贫困线或以下。

《牛津词典》

Notice that each level only communicates with the level above or below.

注意每个级别仅仅与它上面或者下面的级别通信。

youdao

youdao

But Michael O'Donnell says the number of serious bird strike incidents has remained at or below two hundred each year.

VOA: special.2009.04.01

Here for example we have the pitch C and either note above or below it is dissonant.

如果说这里用C音，那么不管是和它上面还是下面的音符搭配都不和谐。

耶鲁公开课 - 聆听音乐课程节选

Without showing your neighbor what you are doing, put it in the box below either the letter Alpha or the letter Beta.

在不被你同桌看到的情况下,在方框中填写字母α或者字母β

耶鲁公开课 - 博弈论课程节选

The mountains around me looked identical, giving nothing away as to what was above or below them.

BBC: In Ireland, hiking for ancient relics hidden by fog

Most newly public companies trade at or below where they finished their first-day trading.

FORBES: Will Zynga Light up the IPO Market?

Under the four-tier system, teachers will be rated exemplary, proficient, developing or below standard.

WSJ: Conn. Joining Teacher Trend