He can't afford his rent, let alone a holiday.他连租金都付不起了, 就别说去度假了。
No one was arrested, let alone prosecuted.没有人被逮捕, 更不用说被起诉了。
英汉双解词典包含368430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。