We will use cyanide in this chemical experiment.

This document has been shortened for abbreviation.

This sentence is too long, please abbreviate it.

We reached an agreement on the new project yesterday.

They reached an agreement on a new contract.

I have been to Guangxi.

We held a study session at school for the underclassmen.

He is a disciple of a famous painter.

The probability of that project succeeding is high.

The accuracy of this experiment is very high.