demonstrate名词

　　The police were much in evidence at today's demonstration.

　　在今天的示威集会上警察随处可见。

　　She walked me through a demonstration of the software.

　　她一步步地给我演示软件。

　　There was a strong police presence at the demonstration.

　　示威现场有了大批警察。

　　The police are preparing themselves for trouble at the demonstration.

　　警察正在准备防范示威时可能出现的骚乱。

　　Lectures will be interspersed with practical demonstrations.

　　讲课中将不时插入实际示范。