In 51 BC , Julius Caesar returned to Gallia , where he was again " Legatus " for Vatinius .
Julius Caesar returned to Gaul in 51 BC , where he was again a " legatus " for Vatinius .
Julius Caesar returned to Gaul in 51 BC , where he was again a " legatus " for Vatinius .
解释一下这句话: In 51 BC , Julius Caesar returned to Gallia , where he was again " Legatus " for Vatinius . 输出: