Let's participate in the election by using early voting.

It's difficult to understand the context of this sentence.

He was diagnosed with congestive heart failure.

Because he has immunodeficiency, he always pays attention to his health management.

He was diagnosed with prostate cancer.

He was tried for the crime of desertion in the face of the enemy.

He is an expert in physical anthropology, conducting research on human evolution.

The lens of this camera is easy to attach and remove.

The human immunodeficiency virus destroys the immune system, making the body unable to fight disease.

It is important to learn about the prevention and treatment of the human immunodeficiency virus.