System and surroundings
体系与环境
Explanation (EN)
The part of the universe under study (system) and everything outside it with which it exchanges heat and work (surroundings).
Explanation (ZH)
所研究的那部分宇宙(体系)及与其交换热和功的外部一切(环境)。
About the IPA
The International Phonetic Alphabet is a standardized system of symbols used to represent the sounds of spoken language.
It helps linguists, language learners, and educators accurately describe pronunciation across languages.
Example: the word "hello" in British English is transcribed as /həˈləʊ/ in IPA.