n.地面,土地;基础;范围;阵地,战场;
vi.搁浅,停飞;着陆;
vt.把…放在地上;在…的基础树立上;交给…基本知识;使…受初步训练;
v.grind的过去式和过去分词;
adj.磨细的;磨碎的;
例句:
He ground the knife sharp.
他把刀磨锋利.
People watched in horror as the plane crashed to the ground.
人们惊恐地看着飞机坠落到地面上。
He poured the wine on the ground.
他把酒洒在地上.