chalk/tʃɔːk $ tʃɑːk/

n. small sticks of a substance like soft rock, used for writing or drawing

n. [U; C，常~s] 粉笔：a piece/stick of chalk一支粉笔

◇a box of colored chalks 一盒彩色粉笔

◇write in chalk on the blackboard用粉笔在黑板上写字

常犯错误

✗ a chalk

✓ a piece of chalk 一支粉笔

音组-alk/-ɔːk $ -ɑːk/

chalk; talk; walk