as sharp as a marble

网络释义

1.	十分枯燥无味 marbl... ... as cold as marble 其冷如冰 as sharp as a marble [美俚]十分枯燥无味 be missing a few marbles 头脑有点儿不正常 ... dict.ebigear.com

随便看

英汉双解词典包含2704715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。