mortar

Definition

A mixture of cement, sand, and water used to bind building blocks; also, a heavy weapon that fires shells at high angles.

中文 由水泥、沙子和水混合而成的粘合剂，用于砌筑；也是一种以大角度发射炮弹的重型武器。

Example

"The mason carefully applied mortar between the bricks to ensure a strong bond."