Microorganisms are one of the basic forms of life.

I fine-tuned the television to make the picture clear.

He tuned in the sound of the guitar.

I studied calculus at university.

Thin clouds are floating in the sky.

Microvilli exist on the surface of cells and play a role in helping absorb substances.

This area has a unique microclimate.

He was dozing off in the train.

He was dozing off in the train.

He has been having bad luck recently.