Chinese Character: 汽 (Qì - Steam; Vapor)
1. 基本信息 (Character Basics)
部首: 氵 (Radical: 氵, related to water)
笔画数: 7 (Number of strokes: 7)
结构分解: 形声字，从水（氵）从气，气亦声。本义指水受热蒸发形成的气体，如“蒸汽”。(A phonetic-semantic character, combining "氵" (water radical) and "气" (gas), with "气" indicating pronunciation. Originally refers to gas formed by water evaporation, e.g., "蒸汽" - steam.)
笔顺:
2. 发音 (Pronunciation)
拼音: Qì (Fourth tone)
3. 含义 (Meaning)
“汽”主要指液体或固体受热后变成的气体，如“蒸汽”（steam）、“汽化”（vaporization）。("汽" mainly refers to gas formed by heating liquids or solids, e.g., "蒸汽" - steam, "汽化" - vaporization.)
4. 常用词汇 (Common Words)
- 汽车 (qì chē) Automobile
- 汽油 (qì yóu) Gasoline
- 蒸汽 (zhēng qì) Steam
5. 语法与用法 (Grammar & Usage)
“汽”通常作为名词使用，多与“水”相关的气体概念结合，如“汽水”（carbonated drink）、“汽化”（动词，表示液体变气体）。("汽" is usually used as a noun, often combined with water-related gas concepts, e.g., "汽水" - carbonated drink, "汽化" - vaporize (verb).)
6. 文化背景 (Cultural Background)
“汽”在工业革命后与现代科技紧密相关，如“蒸汽机”（steam engine）推动了工业发展。现代汉语中“汽车”（automobile）一词即因早期使用蒸汽动力而得名。("汽" is closely related to modern technology after the Industrial Revolution, e.g., "蒸汽机" - steam engine promoted industrial development. The term "汽车" (automobile) in modern Chinese was named due to early use of steam power.)
7. 例句 (Example Sentence)
水壶里的水烧开了，冒出大量蒸汽。(Shuǐ hú lǐ de shuǐ shāo kāi le, mào chū dà liàng zhēng qì.)
The water in the kettle is boiling, emitting a lot of steam.
我需要给汽车加汽油。(Wǒ xū yào gěi qì chē jiā qì yóu.)
I need to refuel the automobile with gasoline.
8. 记忆技巧 (Memory Tips)
联想“汽”的结构：左边“氵”（水）表示与水相关，右边“气”（gas）表示气体，结合发音“Qì”（第四声），记忆为“水受热变成的气体”。(Associate the structure of "汽": "氵" (water) on the left and "气" (gas) on the right, combined with the pronunciation "Qì" (fourth tone) to remember it as "gas formed by heating water".)