In order to find the least common denominator, you need to find the multiples of all denominators.

We conducted a spectral analysis to investigate the spectral characteristics of this substance.

I have been to Qitaihe.

I would like to visit the Nile River once.

The Amazon River dolphin is known for its beautiful pink body.

This desert, like the Ganges sand, conceals a deep philosophy in its origin and meaning.

I have been communicating with him for a long time.

He hiked the mountain alone.

He is trying to cut back on sweets because of his hyperglycemia.

Hengchun is a beautiful town in Taiwan.