土著人以前总是用沉重的石头把这种金属锤打成箭头.The natives used to hammer the metal into arrowheads using heavy stones.他们终于把那些土著人全部消灭了.They managed to wipe out the entire aboriginal population.来访者可以琢磨琢磨土著人在库克时期用的回飞镖.The visitor can ponder over...