n.白垩块，痛风石，垩石...

The soldiers numbered off from the right.士兵们从右开始报数.The officer numbered the men off.军官叫士兵报数.The company numbered off one by one from left to right.该连士兵由左向右报数....

chalkstone的音标：chalkstone的英式发音音标为：['tʃɔ:kstəʊn]chalkstone的美式发音音标为：['tʃɔkˌstoʊn]...