chalk out

动词 chalk out:

1. make a sketch of
   同义词：sketch

1. 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。
2. 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。