He is an expert in toxicology.

He is a second-year high school student.

The scent of the osmanthus is spreading throughout the garden.

He is devoted to the study of neoplasms.

The Weaver Star is shining in the summer night sky.

Her necklace had a beautiful cat's eye stone.

Scientists are warning that this substance is carcinogenic.

His toponymic surname indicates the region from which his family originates.

This beautiful scenery has an eternally unchanging value.

My biological clock is disrupted, and I've been having sleepless nights.