“原始”的英语？

“原始”的拼音为：yuán shǐ...

原始的碳纤维材料很像布料。In its untreated state the carbon fibre material is rather like cloth.我们决定将这笔费用从原始发票上删去。We will be pleased to delete the charge from the original invoice.2,000万年前，爱达荷州到处都是茂密的原始森林。Twenty million years ago, Id...