享有贸易顺差的国家将不会受到调高本国货币币值的压力。
If you are constantly on the move, you cannot afford to accumulate large material surpluses.如果你不停地迁移,你就无法积累大量的物质盈余。
Transportation was becoming less of a problem for those who wished to move west and for those who had farm surpluses to send to market.对于那些想要搬到西部去的人和有多余农产品要送到市场去的人来说,交通已经不是什么问题了。