Meaning of cā:
擦
to rub; to scratch; to wipe; to polish; to apply (lipstick, lotion etc); to brush (past); to shred (a vegetable etc)
Tā yòng bù qīngqīng de bǎ zhuōzi cā gānjìng.
她用布轻轻地把桌子擦干净。
She gently wiped the table clean with a cloth.
Tā yòng bù cā zhuōzi.
他用布擦桌子。
He wipes the table with a cloth.
Tā měi tiān chūmén qián dōu yào zǐxì de cā kǒuhóng.
她每天出门前都要仔细地擦口红。
She carefully applies lipstick every day before going out.
Tā jīngguò shí, qīngqīng cā guò wǒ.
他经过时,轻轻擦过我。
When he passed by, he lightly brushed past me.
Tā kāishǐ yòng báosīqì cā húluóbo.
她开始用刨丝器擦胡萝卜。
She began to shred the carrots with a grater.