瓷器是一种由精选的瓷土或瓷石通过工艺流程而制成的物件。
Porcelain is a material made from well-chosen porcelain clay or pottery stone through technological processes.
在历史上，纺织染料是由植物和动物排泄物等天然资源制成的。
Historically, textile dyes were made from such natural sources as plants and animal excretions.
最早的汽车发动机使用的是由玉米和花生油制成的燃料，不是吗？
The earliest car engines ran on fuel made from corn and peanut oil, didn't they?
样样都是莫利敏捷灵巧的手缝制成的。
运送废燃料的容器极为坚固，是用钢或钢铅合金制成的。
Flasks for the transport of spent fuel are extremely strong containers made of steel or steel and lead.
这些实验中所用的猴子事先都已接种了由死亡的被感染细胞制成的疫苗。
The monkeys used in those experiments had previously been immunized with a vaccine made from killed infected cells.
大多数纸是由针叶树的纸浆制成的。
这种纸是用丝绸制成的，非常昂贵。
筷子是由不同的材料制成的。
它们是由大多数人扔掉的东西制成的。
那时它们是用羽毛、竹子或丝绸制成的。
牛奶瓶就是用它制成的。
购物袋就是用它制成的。
这些宇宙飞船是用一种坚固的材料制成的。
墨水和纸张都是通过不同的化学过程制成的。
Both the ink and the paper were made by different chemical processes.
这种材料是由一遇热就会变色的染料制成的。
This material is made with dyes that change colors when they get warm.
现在它们是由软塑料制成的，使用起来更容易！
Today they're made of soft plastic and are much easier to use!
我们知道，大多数背包是由不同的材料制成的。
As we know, most backpacks are produced from different materials.
机翼是由铺在碳纤维框架上的聚乙烯薄膜制成的。
The wings are made of a polythene film stretched over a carbon fiber frame.
这些酱料是由西红柿、洋葱、辣椒和香料制成的。
These sauces are made from tomatoes, onions, hot peppers and spices.
中国长城是由石头、砖和其他材料制成的一道城墙。
The Great Wall of China is a series of walls made of stones, bricks, and other materials.
所有的展品都是用旧的金属、木头、布料和塑料制成的。
All of the pieces were made from used metal, wood, cloth, and plastic.
他们穿着薄布制成的袍子，脚上穿着一双轻便的开口鞋。
你可能会想：牛仔布不是由棉花这种天然材料制成的吗？
You might wonder: Isn't denim made of cotton, a natural material?
传统上，衣服是由天然材料制成的，如棉花、皮革和羊毛。
Clothes are traditionally made of natural materials, such as cotton, leather and wool.
吃元宵（用糯米粉制成的甜汤圆）是元宵节特别传统之一。
Eating yuanxiao (sweet dumplings made of glutinous rice flour) is one of the special traditions of the Lantern Festival.
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