季布一诺季布，汉初楚人。楚汉战争中为项羽部将。后归汉，任河东守。布以任侠著名重然诺，楚人有“得黄金百斤，不如得季布@诺”之谚。见《史记季布栾布列传》。后以“季布一诺”为重然诺而不失信用之典。[查看详情]

一言为定一句话说定，不再更改或反悔。例姐姐说的有理就是这等一言为定不可再改。——清文康《儿女英雄传》英that's settled then; once sth.is said,it must be kept;[查看详情]

千金一诺一诺千金。一句诺言有千金价值。形容说话算数极守信用。例孔耘轩离座一揖道：“千金一诺，更无可移。”——清李绿园《歧路灯》英a promise that will be kept;[查看详情]

三缄其口形容说话极其谨慎、不轻易开口。英speak with caution; absolute refusal to talk with one's mouth sealed more than once;[查看详情]

守口如瓶闭口不说，像瓶口塞紧了一样。形容说话谨慎或严守秘密。例防意如城，守口如瓶。英tightlipped; reticent; do not breathe a single word;[查看详情]

一言九鼎九鼎：古代国家的宝器象征九州。形容说的话分量大起决定作用。英solemn promise;[查看详情]

说一不二说话守信用说话算数。例警卫中知道总司令是说一不二的。——《草地晚餐》英overpowering; mean what one says; one's word would be law; stand by one's word;[查看详情]