The material is injected with natural materials resulting in a sweet smell.

注入了天然香料，是鞋子闻起来有香味。

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The Beijing Zoo, for one, has opened a much larger elephant enclosure and replaced the concrete in its otter exhibit with natural materials and waterfalls.

北京动物园有建造一个很大的大象围场，取代用混凝土修筑，在里面还有水濑在自然的环境和人造瀑布下表演。

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The diversity of Italy's natural resources provided Renaissance architects with a wide variety of building materials.

意大利自然资源的多样性为文艺复兴时期的建筑师们提供了各种各样的建筑材料。

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The whole apparatus is small enough to take outside the lab to locations with natural materials with interesting textures.

BBC: Artificial finger tests evolutionary origin of prints

Made up of timbers cut from a nearby sustainable wood along with natural and biodegradable materials, the home generates all its own power.

BBC: Demolition for 'lost tribe' eco house

The plastination process involves replacing the natural body fluids with synthetic materials such as silicone rubber, epoxy resin or polyester.

BBC: NEWS | Health | Preserved body slice on display