chem
chem — 名詞
1. an informal short form of the word chemistry, used to mean the school subject th
化學課
指學校的化學科目
an informal short form of the word chemistry, used to mean the school subject that studies what substances are made of and how different materials change or join together when mixed.
Ravi has a chem exam on Friday and needs to memorise the periodic table.
Ravi 星期五有化學課考試，需要背週期表。
informal abbreviation in school context
Leila enjoyed chem more than biology because she loved mixing substances in the lab.
Leila 覺得化學課比生物課有趣，因為她喜歡在實驗室裡混合物質。
used as a subject name alongside other subjects
The school built a new chem lab with safety showers and fume hoods.
學校蓋了一間新的化學實驗室，裡面有安全淋浴設備和排煙櫃。
Tomás borrowed Aiko's chem notes after missing the class on acids and bases.
Tomás 跟 Aiko 借了化學課筆記，因為他錯過了酸和鹼的那堂課。
文法句型
the + noun + of + noun
possessive + noun
用法筆記
Avoid using the abbreviation 'chem' in formal academic essays or official science reports — always write 'chemistry' in those contexts.
常見錯誤
chem — 形容詞
1. an informal short form of the word chemical, describing things that are made by
化學的
與化學有關的簡稱
an informal short form of the word chemical, describing things that are made by or relate to the science of chemistry.
The factory was fined for dumping chem waste into the river without proper treatment.
那家工廠因為把化學廢料未經處理就排入河裡而被罰款。
collocation: chem waste
Aiko put on protective goggles before starting the chem reaction demonstration.
Aiko 在進行化學反應示範之前戴上了護目鏡。
collocation: chem reaction
Workers in protective suits cleaned up the chem spill near the highway within hours.
身穿防護衣的工作人員在幾小時內清理了高速公路附近的化學物質外洩。
The chem plant outside town produces fertiliser and industrial cleaning agents.
城外的化工廠生產肥料和工業清潔劑。
文法句型
chem + noun
用法筆記
The adjective form 'chem' only appears before a noun (e.g. chem plant, chem waste). It is not used predicatively — you cannot say 'this reaction is chem'.