This twin crystal has a very unusual shape.

The shape of this dipyramid is very unique.

This bicone shape is mathematically very interesting.

He likes to take a walk in the park at dusk.

My grandfather is suffering from arthritis.

I plan to spend this Christmas with my family.

Today is China's National Day.

He adjusted the rhythm using a metronome.

The sympathetic ganglion is a part of our autonomic nervous system and controls various functions of the body.

We crossed the sea by catamaran.