一干二净

• 拼音: yī gān èr jìng
• 汉字拆解: 一 = completely; 干 = dry, clean, done (originally a weapon/shield — extended to thorough); 二 = two (intensifier — utterly); 净 = 氵 + 争 (water + contend — cleansed, pure)

含义

Completely; thoroughly; entirely — leaving nothing behind. Used to describe something being eaten, cleaned, cleared, or forgotten in its entirety.

A four-character idiom (成语). 一干 = completely dry/cleared; 二净 = utterly clean. Together they emphasise total completeness with nothing remaining. Common patterns: 吃得一干二净 (eat every last bit), 忘得一干二净 (forget completely), 收拾得一干二净 (tidy up thoroughly). Colloquial in register.

例句

1. 孩子们第一次吃到外婆做的饺子，盘子里的食物被吃得一干二净，连汤汁都不剩。
2. 会议结束后，他将黑板上密密麻麻的公式擦得一干二净，只留下了最终推导结果的截图。
3. 多年不见的旧事他声称已忘得一干二净，但从他偶尔失神的眼神来看，记忆恐怕并未真正消散。

用法指南

语境: daily life, food, colloquial, description

语气: neutral

正确说法

• 这道清蒸鱼端上桌不到十分钟便被一家人吃得一干二净，大人小孩都赞不绝口，厨师听到这个反馈后高兴得合不拢嘴。(The steamed fish was on the table for less than ten minutes before the whole family had finished every last bit; adults and children alike were full of praise, and the cook beamed with delight on hearing the feedback.)
• 他花了整整一个周末将久未整理的阁楼清理得一干二净，装满了七大袋不再使用的物品，阁楼也终于恢复了应有的宽敞。(He spent an entire weekend thoroughly clearing out the long-neglected attic, filling seven large bags with items no longer in use, and the attic finally regained its proper spaciousness.)

错误说法

• 他一干二净地走了 — 一干二净 describes leaving no remainder of a thing, not the manner in which a person departs; use 干脆地离开 or 头也不回地走了 for departing decisively

起源与历史

一 (completely) + 干 (dry/done — originally a weapon/shield; extended to 'clean,' 'dry,' 'done') + 二 (two — reinforcing intensifier) + 净 (clean/pure — 氵water + 争 contend; thoroughly cleansed)

文化背景

时代: Modern

世代: All ages

社会背景: Universal