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。
聚乙烯
polythenes — plural of polythene
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
polyethylene
聚乙烯
Synonym of polyethylene.
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
The sandwiches were wrapped in a sheet of polythene to keep them fresh.
三明治用一块聚乙烯薄膜包着,以保持新鲜。
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.
请把旧报纸放进聚乙烯袋里再扔掉。
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.
粉刷房间时,工人们用聚乙烯罩住家具。
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 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。
表示“由聚乙烯制成”时常用 made of polythene。
The bags are made of polythene.
这些袋子是聚乙烯做的。
polythene bag 是常见搭配,指聚乙烯塑料袋。
She packed her lunch in a polythene bag.
她把午餐装进一个聚乙烯袋里。
sheet 用于表示一片或一张聚乙烯薄膜。
Cover the plants with a sheet of polythene.
用一块聚乙烯薄膜盖住植物。
与 polythene 同指;polythene 为英式常用词,polyethylene 是更正式、通用的化学名称,美式英语中几乎只用 polyethylene。
是 polyethylene 的缩写,常见于工业、产品标签和口语(如 PE 袋);但在体育相关语境中 PE 通常指 physical education(体育课),需靠上下文分辨。
英式非正式用法,常出现在 poly bag、poly pipe 等复合词中;单独说 poly 可能被误解为 polytechnic(理工学院)等,歧义较大,正式写作不宜使用。
grammar · medium
易错句子Please give me a polythene to keep the food fresh.
正确表达Please give me a polythene bag to keep the food fresh.
polythene 是物质名词,通常不可数,不能用 a polythene 直接表示“一个塑料袋”;需后接 bag 等量词。
grammar · medium
易错句子This bottle is made by polythene.
正确表达This bottle is made of polythene.
表示“由某材料制成”应用 made of,而 made by 用来引出制造者或方式,不能接材料。
polythene 是 polyethylene 的英国口语简称,两者同指一种材料;正式或学术写作中通常用 polyethylene。
polythene 指聚乙烯,polystyrene 指聚苯乙烯,二者是不同的塑料;不要因为都带 poly- 就都译成聚乙烯。
polypropylene(聚丙烯)与 polythene(聚乙烯)都是热塑性塑料,但单体不同、性能不同;polypropylene 耐热性更好。
聚乙烯袋
She packed the sandwiches in a polythene bag.
她把三明治装进聚乙烯袋里。
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。
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。
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。
聚乙烯内衬
The bin has a polythene liner for easy cleaning.
垃圾桶内有聚乙烯内衬,便于清洁。
poly- (many) + ethene (乙烯, with initial e dropped)
poly- (many) + -mer (part/unit)
poly- (many) + ester (酯)
eth- (two-carbon chain) + -ene (alkene suffix)
聚乙烯是一种常见的塑料材料。
聚乙烯常用于制作包装材料。
聚乙烯属于聚合物的一种。
聚乙烯常被用来制造塑料袋。
聚乙烯可制成薄薄的塑料膜。
甲壳虫乐队《Abbey Road》专辑中《Polythene Pam》的歌词。Polythene 意为“聚乙烯”,Polythene Pam 是歌中一个穿聚乙烯塑料衣的女孩。
The Beatles had a hit song called 'Polythene Pam', which made the word polythene famous in pop culture.
甲壳虫乐队有一首名为《Polythene Pam》的热门歌曲,这让 polythene 一词在流行文化中广为人知。
Dictionary facts from ECDICT, WIKTIONARY.