He learned about unguligradism in his zoology class.

His research mainly focuses on the plantigradism of mammals.

She has polycystic ovary syndrome.

He is writing a thesis on monotheism.

Sufficient caution is necessary when handling radioactive materials.

He was ruing his past mistakes.

He stared at the corpse, trembling with fear.

He is an expert in analytical mechanics and deeply understands its theory.

We shared the progress of the project in a video conference.

The Taiwan Strait is the strait that separates China and Taiwan.