It was made of soft lumber, spruce by the look of it.

它是软木做的，看样子是云杉。

《柯林斯英汉双解大词典》

Today they're made of soft plastic and are much easier to use!

现在它们是由软塑料制成的，使用起来更容易！

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We are made of soft matter.

我们是由软性物质组成的。

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The canyon walls are made of a soft rock called tuff.

VOA: special.2010.07.05

We are made of soft matter.

我们是由软性物质组成的。

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The technique allows the machine to be made of soft materials so it can squeeze through tight spaces and mould its shape to rough terrain.

BBC: Pentagon helps build Meshworm reconnaissance robot

You get three earplugs made of soft, hypoallergenic silicone, with tiny filters to temper the sound, and a small cylindrical aluminum carrying case that fits on a key ring.

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Further afield, Kenji World, (81-19) 695-3333, in northern Japan's Iwate prefecture, boasts a colossal onsen "beach" where warm water washes up on the shore (made of brownish soft board instead of sand).

CNN: ASIANOW - Travel Watch | Offbeat Onsen Offer Tradition with a Twist