Before it lay a smoking iron-mine in a field of uprooted trees, which the giant miners had torn up in their search for iron nuggets.
城墙前面的树被连根拔起，底下是冒着烟的铁矿，被巨人们挖开了寻找铁块的。
2
It does not cost much to scrape it up, and the expense comes in moving costs from mine to market. Even so, Australia can produce iron ore for $25 a tonne.