快速

• 拼音: kuài sù
• 汉字拆解: 快 = 忄(heart) + 夬 (decisive), meaning quick-hearted or fast; 速 = 辶 (movement) + 束 (bundle), meaning speed

含义

Fast; rapid; quick. Describes high speed in movement, action, or process.

A more formal synonym of 快 (fast), used to emphasise speed in a slightly more precise way. Common in written Chinese, news, and technical contexts. Often modifies nouns directly: 快速发展 (rapid development), 快速增长 (rapid growth). Can also be used as an adverb: 快速地 (rapidly).

例句

1. 城市正在快速发展。
2. 他快速地跑过了终点线。
3. 请快速回答这个问题。

用法指南

语境: description, news, instructions

语气: urgent

正确说法

• 经济在快速增长。(The economy is growing rapidly.)
• 我们需要快速做出决定。(We need to make a decision quickly.)

错误说法

• 你快速一点儿！(Don't use 快速 as a casual command to hurry up — use 快 instead. Say 你快一点儿！)

起源与历史

Compound of 快 (fast/quick) and 速 (speed). Both characters individually mean fast, and together they form an emphatic compound adjective common in modern standard Chinese.

文化背景

世代: All ages

社会背景: Universal