demonstration
n.证明，论证；实物示教，示范；示威游行；表示
网络解释.示范；演示；论证；实证
词形变化:
复数：demonstrations
派生词: demonstrational
proof exposition
双语例句
1. 1 . The demonstration itself was against the Government's new Community Charge.
游行本身反对的是政府新出台的“人头税”。
来自柯林斯例句