He has a wealth of knowledge about the zodiac.

The atmosphere of the meeting has grown tense.

My younger brother attends a class for special needs.

The shrine is a traditional Japanese building.

He is our class representative.

The steepest descent method is one way to solve optimization problems.

It is generally believed that the life of the middle class is stable.

He emphasized the importance of class struggle.

It suddenly started raining.

This area was formed under the influence of a lava dome.