I have installed a new computer.

He is acting very arrogantly.

We hold weekly meetings to deepen our mutual understanding.

This lake is rich in diatoms.

He found a gem in the shape of a dipyramid.

He made an object in the shape of a bicone.

Fundamental interaction is one of the most important forces in physics.

My new electric vacuum cleaner is very quiet, making cleaning easier.

The enemy plane carried out a strafing on our position.

I strafed the enemy's position.