Please look at the cross-section of this building.

This road has a rough surface, making it difficult to ride a bicycle.

He stared at the death mask and trembled with fear.

Looking at his dumb-looking face, it was hard for me to hold back my laughter.

These two planes are coplanar.

He conveyed his thoughts through a face-to-face presentation.

He stated his opinion plainly.

The impression from that sight left a deep mark on his heart.

He tried to solve the problem all day long.

Let's finish this job for now and then move on to the next.