The police used tear gas against the demonstrators.

We need to replace the gasket of this engine.

He lost consciousness due to the effects of nerve gas.

Looking at that person's behavior, I feel like they have some secret.

He likes repairing old locomotives.

Reducing greenhouse gas emissions is important for environmental protection.

The use of weapons of mass destruction is prohibited by international law.

My new station wagon is very convenient.

The propaganda truck passed by, and the noise finally subsided.

The green car of the Shinkansen is very comfortable.