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

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

I look forward to going to the sea for a swim with my family during the summer vacation.

We went to the swimming beach with our family during the summer vacation.

Solving problems of arithmetic sequence is difficult.

I like watching the lantern floating at the summer festival.

The opinions of voters have a significant impact on policy decisions.

He is immersed in the study of Tang-Song phonetics.

I am a believer of the Eastern Orthodox Church.

He distinguished himself in that project.