1. | [u] 灰泥;砂浆a mixture of sand, water, lime and cement used in building for holding bricks and stones together |
2. | [c] 迫击炮;迫击炮弹a heavy gun that fires bombs and shells high into the air; the bombs that are fired by this gun |
to come under mortar fire/attack 受到迫击炮火的袭击 |
3. | [c] 研钵;臼a small hard bowl in which you can crush substances such as seeds and grains into powder with a special object (called a pestle ) |