scratchwork

n. [建筑学]刮涂; 涂画装饰

释义与例句

n.
  1. 1.

    The first layer of plaster to be applied in plasterwork.

    不可数
  2. 2.

    Rough work produced while solving a mathematical problem.

    不可数

词源

From scratch + work.

来源：wiktionary