推算

• Pinyin: tuī suàn
• Hanzi breakdown: 推 = 扌 (hand) + 隹 (bird, phonetic); 算 = 竹 (bamboo) + 目 (eye) + 廾 (two hands) — originally an abacus

Meaning

To calculate; to estimate; to reckon. Working out dates, quantities, or results through logical or mathematical deduction.

Used when a value cannot be directly measured but must be derived through calculation or inference. Common in astronomy (calculating celestial events), history (reckoning past dates), finance (projecting figures), and forensics (estimating times). Implies a systematic, evidence-based estimation process.

Examples

1. 天文学家精确推算出下一次日全食将在2035年出现。 Astronomers precisely calculated that the next total solar eclipse will occur in 2035.
2. 考古学家通过碳14检测推算出这件文物距今约三千年。 Archaeologists used carbon-14 dating to estimate that this artefact is approximately three thousand years old.
3. 按目前增长速度推算，五年内用户量将突破一亿。 Based on the current growth rate, it can be calculated that the user base will exceed 100 million within five years.

Usage Guide

Context: scientific, historical, financial, forensic

Tone: analytical

Do Say

• 根据现有数据可以推算出大概的完工日期。(Based on available data, we can calculate an approximate completion date.)
• 专家从地层特征推算出这次地震的震级。(Experts calculated the earthquake's magnitude from the geological strata characteristics.)

Don't Say

• 用'推算'代替精确的实测结果 (推算 implies estimation through reasoning, not direct measurement — don't conflate with 测量)

Origin & History

Compound of 推 (extend, derive) + 算 (calculate, count). Together convey 'deriving a figure through calculation.'

Cultural Context

Generation: All ages

Social background: Universal