The level crossing \/ the railway \/ the railroad \/ the track

The level crossings are controlled by traffic lights.

The instant replay on the sidelines clearly showed the foul.

The touchline cameras record every detail of the match.

Lock the door before you leave.

The knight galloped at full speed towards the castle.

Chain reaction is a common phenomenon in nuclear physics.

Chain reactions are important for many biological processes.

I bought a bandsaw for my woodworking workshop.

Band saws are very useful for cutting wood.