chalk /tʃɔ:k/ n.［u］粉笔：write with a piece of chalk on the blackboard用粉笔在黑板上写字；chalk line (田径)场上白线；a box of coloured chalks一盒彩色粉笔；to write with chalk用粉笔写字 She had scrawled a note in chalk across the blackboard.她用粉笔在黑板上潦草地写了个通知。