千钧一发

• 拼音: qiān jūn yī fà
• 汉字拆解: 千 = 十 + 人 (thousand); 钧 = 钅(metal) + 匀 (even) (ancient weight unit); 一 = horizontal stroke (one); 发 = 癶 + 弓 + 殳 (hair/emit)

含义

Hanging by a thread; a critical, extremely dangerous moment. Describes a situation of extreme peril where catastrophe hinges on the thinnest margin.

A four-character idiom from classical Chinese. 钧 is an ancient unit of weight (30 jin ≈ 15 kg); the image of 1,000 钧 suspended by a single hair evokes imminent catastrophe. Used in news, literature, and speech to dramatise moments of extreme crisis or narrow escape.

例句

1. 消防员在千钧一发之际将被困在三楼的老人成功救出，此时楼板已开始大面积坍塌。
2. 谈判代表在千钧一发的最后关头提出了新方案，双方才得以化解持续数月的外交僵局。
3. 飞行员凭借过硬的技术和冷静的判断，在千钧一发之际稳住了发动机故障的飞机，避免了一场惨烈空难。

用法指南

语境: emergency, crisis, rescue, diplomacy

语气: urgent

正确说法

• 在千钧一发的危急时刻，特警队员毫不犹豫地冲入浓烟弥漫的建筑内，将最后一名人质安全救出。(At the most critical moment, hanging by a thread, the SWAT officers charged without hesitation into the smoke-filled building and safely rescued the last hostage.)
• 股市在千钧一发之际得到了国家队的强力介入，才避免了一场可能波及实体经济的系统性金融危机。(The stock market, at a perilous turning point, received powerful intervention from national-level funds, thereby averting a systemic financial crisis that could have rippled into the real economy.)

错误说法

• 这道题千钧一发地难 — 千钧一发 describes a moment of extreme danger or crisis, not degree of difficulty; use 难如登天/极其困难 for difficulty

起源与历史

千 (thousand) + 钧 (ancient weight unit, ~15 kg) + 一 (one) + 发 (hair) — a thousand jun hanging by a single hair; extreme danger

文化背景

时代: Classical origin, modern use

世代: All ages

社会背景: Universal