Octacosane is a compound often used in organic chemistry.

Octatriacontane is a type of hydrocarbon in organic chemistry.

贈 is the old font for 贈.

He was working on that project round the clock.

Due to his somnambulism, he may walk around unconsciously in the middle of the night.

He is working round the clock.

I entrusted my dog to him.

He checked whether he remembered or not.

Cyclooctane plays an important role in organic chemistry.

He took out a book from the bookshelf at the back of the room.