Balloon, balloon steam is another word, used less. A balloon is a sealed bag filled with air or some other gas. Balloons can be used not only as toys, but also as means of transportation.
1, gas, pictographic. Oracle bone inscriptions and small seal characters. Like a rising cloud. \"Qi\" is one of the radicals in Chinese characters. The original meaning is cloud. Related groups of words are six qi, qi cylinder, Qi, Qi, qi, qi, Qi, temperament, moon Qi, Qi, Qi, Qi, chivalric qi, frost qi, fetal qi, courage, and so on.
2, steam, refers to vapor, liquid or solid into a gas. Related group words are automobile, steam, soft drink, gasoline, powerboat, steam heater, sparkling wine, steam hammer, cylinder, steam, etc.
Balloon. Air is an object that has no definite shape or volume and can be freely dispersed. Children's toys are filled with \"qi\" instead of \"steam\".