And they argued that the cost of settingup a tracing regime would be too difficult and expensive.
他们还说,建立追踪系统非常困难,成本也很高昂。
2
And the cost of computing power continues to free fall, which is a good sign for any enterprise settingup shop in silicon.
计算能力的成本持续自由下降,这对任何建立了网上销售的企业来说都是个好的征兆。
3
Finding water nearby would not only reduce the cost and complexity of settingup a lunar colony, but would also help it become a staging post for future trips further into space.