He is deeply involved in the study of the meridian system.

He came up with a desperate measure to cover up his own failure.

Understanding dynamical systems is an important part of physics.

I use a pulse rate monitor to check my heart rate every day.

Personality rights are laws to protect the dignity of each individual.

My computer is currently under examination.

He took the Implicit Association Test to examine his unconscious bias.

I am planning to take an eyesight test today.

I am planning to take a PCR test tomorrow.

This 亼 shows an alternative form of 集.