Artificial bone and egg shells make good building materials due to their makeup of proteins and minerals.

人造骨和蛋壳是很好的建筑材料，因为它们由蛋白质和矿物质构成。

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And use one of them to build the third building, turn the other one into an egg, at time 2, you have 2 workers and a worker building the third building.

然后用一个去建第三个建筑，另一个变成虫卵。在2时刻，你有2个农民，并且第三个建筑正在建造。

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Steel egg-shaped sludge digestion tank is fit for building large-capacity digestion tank. In order to adapt the situation of planning market, it is necessary to develop this sludge digestion tank.

钢制蛋形消化槽适合于建立大容量的消化池，为了适应设计市场的这种形势，设计开发蛋形消化槽是非常必要的。

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For pre-retirees who are still building the nest egg, this analysis can provide insights about what to expect in the future.

FORBES: Managing Your Retirement Fund In A Secular Bear Market

One advantage is that money left unspent in accounts can be rolled over to the following year, building a nest egg to cover the deductible.

ECONOMIST: Corporate health plans

Not only will you start building up a nest egg, you'll have more money for things that do make you happy, like handbags or trips to Spain.

BBC: NEWS | UK | Magazine | Money worries in your 20s? There may be a silver lining