Lower fatty acids play an important role in human health.

He lost everything.

She is planning a date with her current boyfriend.

My boyfriend gave me a gift.

Everyone was surprised by the news.

Hydrocarbons are fundamental components of organic chemistry.

He was involved in the development of the hydrogen bomb.

Hydrogen sulphide is extremely toxic, and particularly at high concentrations, it is lethal to humans.

These test results are showing unexpected outcomes.

We analyzed the data of the experimental group.