意思是：粉化的，无光的（搪瓷缺陷）；
句子实例：
The commander chalked out his plan of attack.
司令官对进攻计划作了粗略的介绍。
The boys chalked out goalposts on the sports ground wall.
男孩子们在运动场边的墙上用粉笔画上了球门柱。
The team has chalked up its fifth win in a row.
这队一连五次取得胜利。
The boys chalked out goalposts on the playground wall.
男孩子们在运动场的墙上用粉笔画上了球门柱。
