Plastic parts can substitute for metal ones, but they don't last long.

塑料零件可以代替金属零件，但是它们不耐用。

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These include things made out of paper, metal, glass and plastic.

这些包括纸、金属、玻璃和塑料制成的东西。

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They can also be made of plastic, animal bone or metal.

它们也可以由塑料、动物骨头或金属制成。

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A stencil is a thin sheet of metal or plastic out of which a design has been cut.

VOA: special.2009.09.02

This device held here is really made of mainly plastic and a little bit of metal.

这个装置大部分是用塑料做的,还有一点金属

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And the answer, not that there aren't puzzles about it, but the answer is roughly, "It's the very same car if it's the very same hunk of metal and plastic and wires."

而答案，虽然还存在疑问，但答案大致上是，如果是同一堆铁，塑料，电线,就是同一辆车“

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For example, buyers of iPads are willing to pay an exorbitant price for the package of plastic and metal that make up an iPad because that package of plastic and metal can do quite amazing things compares to other packaging of plastic and metal.

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But the bottom line is that the future is more than just metal, plastic, and silicon.

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It was a teaspoon of water in a test tube, not a mass of silicon, metal and plastic.

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