核心问题
Once on the boat, they were taken below and their chains were fixed to two bars that ran the length of the ship. Once on the boat 是个什么结构？
词典解答
once 在这里是个引导时间状语从句的连词。其意义相当于: as soon as, when(一……
Once on the boat, they were taken below and their chains were fixed to two bars that ran the length of the ship. Once on the boat 是个什么结构？
once 在这里是个引导时间状语从句的连词。其意义相当于: as soon as, when(一……