The pulse width of the laser is measured in picoseconds.

This light bulb consumes one watt-second of energy per second.

He was absent from the meeting due to a sudden illness.

We are planning to visit our grandfather's mausoleum tomorrow.

This song is characterized by its irregular time, making the rhythm unique.

I caught a cold, so I decided to take a sick leave.

He is receiving treatment for mania.

The author's photo is featured on the back cover of this book.

He is suffering from a strange malady.

He needs special care because of his inherited disease.