率

• 拼音: lǜ
• 汉字拆解: 率 = complex character; originally depicted a net (suggesting mesh/ratio); now used as suffix for rate/ratio

含义

Rate; ratio; proportion. Used as a suffix to form compound words expressing statistical measures or percentages.

Extremely productive as a suffix in formal and technical language. Common compounds: 成功率 (success rate), 利率 (interest rate), 出勤率 (attendance rate), 死亡率 (mortality rate), 增长率 (growth rate), 失业率 (unemployment rate). Essential vocabulary for economics, statistics, and policy.

例句

1. 该城市今年的经济增长率达到百分之六点八，超过了年初制定的预期目标。
2. 研究显示，规律运动能显著降低心血管疾病的发病率和死亡率。
3. 这所高校的毕业生就业率连续五年保持在百分之九十五以上。

用法指南

语境: statistics, economics, science, policy, business

语气: neutral

正确说法

• 央行宣布下调基准利率零点二五个百分点，以刺激经济增长。(The central bank announced a 0.25 percentage point cut in the benchmark interest rate to stimulate economic growth.)
• 这款新疫苗在临床试验中展现出极高的有效率，保护效果令人鼓舞。(This new vaccine demonstrated an extremely high efficacy rate in clinical trials, and the protective effect is encouraging.)

错误说法

• 将率单独使用来表示百分比 — 率 is a suffix, not a standalone word for percentage; use 百分比 or 百分率 for 'percentage' and attach 率 to a specific noun to form the compound

起源与历史

率 = originally a pictograph of a net with its knots, extended to mean proportion or ratio by analogy

文化背景

世代: All ages

社会背景: Universal