She is the new person in charge of receiving customers at this store.

I am in charge of receiving customers at the store today.

He is an expert in phytopathology, making a significant contribution to agriculture.

Chrysophyta perform photosynthesis underwater, supplying oxygen.

He is an expert in paleobotany.

He is an expert in paleobotany, conducting research on plants from the dinosaur era.

Phytobenthos is an important part of the marine ecosystem.

There is a big papaya tree in my garden.

The history of the Pingpu Tribe forms an important part of Taiwan's history.

My niece is very smart.