n. 土地, 战场, 场地, 地面, 范围
a. 土地的, 地面上的
vt. 放在地上, 使搁浅, 打基础, 给...以训练
vi. 搁浅, 落地, 根据, 基于
a. 磨过的
grind的过去式和过去分词
英文释义
n. a position to be won or defended in battle (or as if in battle)
n. a relatively homogeneous percept extending back of the figure on which attention is focused
n. a connection between an electrical device and a large conducting body, such as the earth (which is taken to be at zero voltage)
n. (art) the surface (as a wall or canvas) prepared to take the paint for a painting