He is attending a prep school for university entrance exams.

He used to work as a miner when he was young.

We have launched a major campaign for the announcement of the new product.

We launched a large-scale advertising campaign to disseminate information about the new product.

The farmer is working in the field from early morning.

He used to work as a miner when he was young.

The Japanese imperial family line is said to have the longest history in the world.

The ecliptic longitude is an important indicator for showing the position of celestial bodies.

A beautiful mountain is depicted in the background of his painting.

He passed the exam using a crafty trick.