he had worked very hard on the place; she, per contra, had little to do.
他在那里非常卖力地工作, 相反, 她却几乎无事可做。
英汉双解词典包含131075条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。