Every year they panned about a ton and a half of gold.每年他们淘出大约1.5吨金子。The ship was permitted to tie up in Bos-ton harbour.该船获准在波士顿港口停泊。Getting rid of rubbish can cost $100 a ton.清除垃圾每吨要花费100美元。...
The net profit amounts to 20 dollars per ton of ore.每吨矿砂的净利达20美元.They selected 7 ton peddles with similar color in couples of ton.他们从几十吨鹅卵石中精心挑选出7吨颜色、材质相似的卵石.A seven-ton lorry slewed across their path.一辆7吨的货车侧滑到了一侧。...a ...