同比
How to Understand
同比 means 'year-over-year' and is used to compare data from the same period in different years. It is commonly used in financial, economic, and statistical contexts to show growth or decline over time.
The character 同 (tóng) means 'same' or 'together,' and 比 (bǐ) means 'compare' or 'ratio.' Together, they form a term that emphasizes comparing the same time frame across different years, making it distinct from month-over-month or quarter-over-quarter comparisons.
同比 is frequently used in business reports, economic analyses, and news articles to highlight trends. For example, a company might report a 10% increase in sales compared to the same period last year. Understanding 同比 helps learners grasp how Chinese media and professionals discuss performance metrics and economic indicators.