In some cases, it is perfectly acceptable to assume a flat model of the Earth and lose some accuracy in exchange for speed.
在一些情况下,完全可以采用平面地球模型,通过牺牲一些精确性来获取速度。
2
Any day the smallest child in that family would lose its first tooth. If her mother couldn't fly, it would be up to Anna to take the coin and make the Exchange.
那家最小的孩子随时都可能掉第一颗牙,如果妈妈飞不动了,安娜必须拿着银币去做这次交易。
3
She adds: "the fact is women generally lose in theexchange of vows."