Draw a line of chalk or sprinkle baby powder across the spot where the ants are entering your home.

在蚂蚁进入你家的痕迹上用粉笔画一条线或者把婴儿粉撒上阻隔它。

youdao

It could be that a random distribution — I don't have colored chalk here I don't think, so I will use a dash line to represent the fat-tailed distribution.

它可能是一个随机分布。我这儿没有彩粉笔，所以我将用一条虚线来表示厚尾分布。

youdao

A few weeks ago my girls were playing in the driveway with sidewalk chalk and I thought it would be fun to make a giant number line.

几个星期前我的女儿们在自家车道上用粉笔玩耍，这让我想到在地上画出一排巨大的数字也许会非常有趣。

youdao

It could be that a random distribution-- I don't have colored chalk here I don't think, so I will use a dash line to represent the fat-tailed distribution.

这是一个随机分布,这里没有彩色粉笔,我就用虚线,来表示长尾分布

耶鲁公开课 - 金融市场课程节选

You can see from this picture of the 1903 World Series that there are no outfield fences, although there was likely a chalk line or a rope marking how close spectators could come to the field.

FORBES: Connect

Whenever I cross the (white chalk) line, I am trying to help the team.

WSJ: Ozuna's 4 RBIs propels Miami to sweep of Mets

"This line, " said the policeman, and he proceeded to draw a line with a piece of chalk.

FORBES