Word · Frequency #11740
polythene
聚乙烯
核心释义
polyethylene
- 1.
聚乙烯
Synonym of polyethylene.
- 2.
一种轻质热塑性塑料；特别用于包装和绝缘
a lightweight thermoplastic; used especially in packaging and insulation
一种轻质热塑性塑料；特别用于包装和绝缘；聚乙烯；[化] 聚乙烯
用法In use
The sandwiches were wrapped in a sheet of polythene to keep them fresh.
用法提示：polythene 是不可数名词，这里指包装用的聚乙烯薄膜。
Please put the old newspapers into a polythene bag before throwing them away.
用法提示：polythene 作定语修饰 bag，表示袋子由聚乙烯制成。
Workers covered the furniture with polythene while the room was being painted.
用法提示：polythene 在这里作不可数名词，指防尘用的聚乙烯罩布。
polythene (material noun)
polythene 通常作不可数名词，不加 a/an。
Polythene is widely used in packaging.
聚乙烯广泛用于包装。
be made of polythene
表示“由聚乙烯制成”时常用 made of polythene。
相关词与表达Connections
搭配Collocations
- polythene bag
- 聚乙烯袋
- She packed the sandwiches in a polythene bag.她把三明治装进聚乙烯袋里。
- polythene sheet
- 聚乙烯薄膜
- Cover the plants with a polythene sheet to protect them from frost.用聚乙烯薄膜覆盖植物以防霜冻。
- polythene wrap
- 聚乙烯保鲜膜
- He covered the bowl with polythene wrap before putting it in the fridge.他把碗用聚乙烯保鲜膜盖好后再放进冰箱。
- polythene packaging
- 聚乙烯包装
- The fragile items were shipped in polythene packaging.这些易碎品用聚乙烯包装运输。
- polythene liner
学习提示Learner notes
记忆技巧Memory Tip
联想：聚乙烯薄膜袋轻得透明，提在手里几乎没分量——polythene 就是这种塑料。
语境与语域Context & Register
语域：neutral 常见场景：packaging materials、household storage、industrial insulation polythene 是英式英语中表示“聚乙烯”的常用词，语气中性，在日常口语和书面语中都比较常见，多用于包装袋、保鲜膜、管道等塑料制品；美式英语中更常使用 polyethylene。
语法说明Grammar Note
polythenes
发音与拼写Pronunciation & Spelling
polythene 的末尾 -thene 读 /θiːn/；scene、gene 词尾为 /iːn/，ethylene 也有 /θ/ 和 /iːn/。注意重音在第一音节，并非严格同韵。theme（/θiːm/）和 thin（/θɪn/）拼写相似但发音不同；machine（/məˈʃiːn/）以 /iːn/ 结尾，但辅音是 /ʃ/ 而非 /θ/。
用法优先级Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Dictionary facts from ECDICT, WIKTIONARY.