it is a matter of regret that the young man passes away.

It was a matter of joy that there was a sail.

To and fro (সামনে-পেছনে) She rocked the baby to and from .

To and fro = এদিক ওদিক He is moving to and fro.

Throughput, in business, is the amount of a product or service that a company can produce and deliver to a client within a specified period of time. The term is often used in the context of a company's rate of production or the speed at which something is processed.

The three unities are: unity of action: a tragedy should have one principal action. unity of time: the action in a tragedy should occur over a period of no more than 24 hours. unity of place: a tragedy should exist in a single physical location.

Though he is poor, he is honest. (Compound) = He is poor but honest.

This is the better of the two.

This is a unique case

This is a unique case.

This culture is alien to our society.

They said that they had watched the movie already (direct) 

= They said, "We have already watched the movie."

They looked at the picture=The picture was looked at by them.

They look forward to receiving.

They have come yesterday. = They came yesterday.