I obliterate the word with chalk.

我用粉笔把这个单词涂去了。

youdao

Teachers usually write on the blackboard with chalk.

教师通常用粉笔在黑板上书写。

youdao

Draw a little square on the floor with chalk and announce to the other passengers, "This is my personal space!"

用粉笔在地上划出个小方块，向其他人宣布：“这是我的地盘！”

youdao

What I can do with is some more chalk.

我来换根粉笔好了

耶鲁公开课 - 博弈论课程节选

He cites how major supermarket chains are striving to be more Whole Foods-like, with chalk signs boasting daily specials sitting just outside their doors.

FORBES: Back to the Future: Longing for That Personal Mom-and-Pop Touch

But the New York-based company is not the same as it was when it started out with just a four square court drawn with chalk in front of the Austin Convention Center.

FORBES: Foursquare's Dennis Crowley At SXSW: Location Is The Future [Video]

The same way he used to lie in the driveway and color with sidewalk chalk.

WSJ: How Mom Plays the Game | Golf Journal