This song has stood the test of time.

The rules of the game are easy to follow.

The construction of the twin-track will increase the capacity of the railway.

The line of fire is a fundamental concept in military strategy.

Squaring the circle is an unsolvable mathematical problem.

The evil genius has planned a diabolical scheme.

The trial by fire has shown its strength and resilience.

She is my best friend.

Scientists are monitoring the sea levels to better understand climate change.