如果你想要一个大点儿的系统，你最好先计划好精心设计一下你的家庭网络，万一还需要重组或者改造一下呢。
If you want to start with a bigger system, it's a good idea to design carefully how the home will work, particularly if rewiring or renovation will be required.
公司每生产一个产品，都需要先设计，然后再付诸生产。
Everything a company is making need to be first designed and later manufacturing.
但是暂时让我们先沉浸在这种认为我们进入了一个合理设计药效精准的黄金时代的希望中。
But let's indulge the hopefulness for a moment and assume that we really are entering a golden age of rationally designed, targeted drugs.
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