问题描述: Litter Ben swam across the river_______(成功)为什么是successfully? 1个回答 分类:英语 2014-11-27 问题解答: 我来补答 successfully [sək'sesfəli] adv.成功地;顺利地successfully是副词,修饰前面的动词swam【swim的过去式】. 展开全文阅读