One original and three copies (1/3) of certificate of origin issued by Chamber ofCommerce shall be issued at loading country; (1)翻译全句(2)这里的copies是指3份正本还是3份副本?(3)如果是正本的话那前面的original又是什么意思呢? 并且如何正确表示三份副本?多谢!回答的好有加分的!外贸新手多谢!