The Summer Triangle is shining in the night sky.

I always take a walk in the mountains and forests on weekends.

He studied deeply about communism.

This cheap seal is not only inexpensive, but also of good quality.

3Q for your help.

It took him a week to cross that mountain range.

I have been to Saint Petersburg.

Aldaric acid is a compound produced by the oxidation of sugars.

The Andes is the longest mountain range in the world, located in South America.

This factory reuses the byproducts produced during the manufacturing process.