"Shanghai's foundations are built on soft soil, so building multistoried spaces underground would be like digging holes in a piece of bean curd," the government report said.

“上海的地基是建在软土地上的，所以在地下建造多层空间就像在一块豆腐上挖洞一样。”政府报道说。

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And digging holes to plant saplings releases greenhouse gases from the soil.

为种植小树而挖坑也会从土壤中释放温室气体。

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Some students are digging holes, some are planting young trees, the others are watering them.

一些同学在挖洞，一些在种小树苗，还有一些在浇水。

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Keynes argued that governments, in extremis, could boost demand by digging holes.

ECONOMIST: The world economy

Instead of digging holes in the electrodes, they are coating them with a forest of carbon nanotubes, each five nanometres (billionths of a metre) wide.

ECONOMIST: Electricity storage

Furthermore, even if we put them to work digging and filling holes (which, I cannot overemphasize, we would not want them to do in reality), that still creates goods and services because the private sector has excess capacity.

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