She tends to be mentally unstable.

In physics, the gyroscopic motion is an important element in controlling the rotation of an object.

We had a picnic on the left bank of the river.

He is going to the hospital for cancer treatment.

I saw a flock of wild geese in the park.

His face is very expressive.

He stubbornly refused to change his opinion.

He had glasses to understand military strategies.

He is looking for a silver bullet to solve the problem.

Every day, my mother lights the altar lamp and prays at the Buddhist altar.