Christmas is the day to celebrate the birth of Jesus Christ.

My birthstone is emerald.

Today is my birthday.

His story was exaggerated beyond recognition, it was unbelievable.

In order to solve this problem, we first need to simplify it.

We need to simplify this problem.

That detection device is very useful for finding landmines.

He developed a device to detect earthquakes.

He is a famous explorer.

The gentian flowers are blooming.