rate; ratio

简明释义

比率

英英释义

例句

1.The exchange rate for USD to EUR is currently 0.85.

美元对欧元的汇率rate目前为0.85。

2.The crime rate in this neighborhood has decreased over the past year.

过去一年中，这个社区的犯罪率rate有所下降。

3.The interest rate on this loan is quite high, making it expensive to borrow money.

这笔贷款的利率rate相当高，借钱成本很大。

4.To calculate the ratio of boys to girls in the class, we found there are 10 boys and 15 girls.

为了计算班级中男孩与女孩的比例ratio，我们发现有10个男孩和15个女孩。

5.The student-to-teacher ratio in this school is 15:1, which allows for more personalized attention.

这所学校的师生比例ratio是15:1，这样可以提供更个性化的关注。

作文

In our daily lives, we often encounter various statistics and measurements that help us understand the world around us. Two important terms that frequently arise in this context are rate (比率) and ratio (比例). Although these terms are sometimes used interchangeably, they have distinct meanings that are crucial for accurate interpretation of data.A rate (比率) is a measure that expresses a relationship between two quantities, typically indicating how one quantity changes in relation to another over time. For instance, when we talk about the crime rate (比率) in a city, we are referring to the number of crimes reported per a certain number of residents within a specific period, such as per 1,000 people per year. This kind of measurement helps policymakers and law enforcement agencies assess the effectiveness of their strategies in reducing crime and improving public safety.On the other hand, a ratio (比例) is a quantitative relationship between two numbers, showing how many times one value contains or is contained within the other. Ratios can be expressed in various forms, such as fractions, decimals, or percentages. For example, if there are 10 boys and 5 girls in a classroom, the ratio (比例) of boys to girls can be expressed as 10:5, which simplifies to 2:1. This means that for every two boys, there is one girl in the class. Understanding ratios is essential in fields like mathematics, finance, and science, as they provide a clear comparison between different quantities.The distinction between rate (比率) and ratio (比例) becomes particularly important in fields such as economics and public health. For example, when analyzing economic growth, economists might look at the growth rate (比率) of a country's GDP over a certain period, which indicates how fast the economy is growing compared to previous years. In contrast, when evaluating income inequality, researchers might use the income ratio (比例) between the richest and poorest segments of the population to illustrate the disparity in wealth distribution. Moreover, understanding these concepts can also enhance our critical thinking skills when interpreting news articles or reports. For instance, a headline might state that "the unemployment rate (比率) has decreased by 2% this year." This statement provides a snapshot of the situation but does not give the full picture. It is essential to investigate what this decrease means in terms of actual numbers of unemployed individuals and how it compares to previous years. Similarly, when a report mentions a ratio (比例) of 3:1 in school enrollment between boys and girls, we should consider the implications of this ratio on gender equality in education.In conclusion, while both rate (比率) and ratio (比例) are vital tools for understanding relationships between quantities, they serve different purposes in analysis and interpretation. A rate (比率) typically involves a time component and expresses change over time, while a ratio (比例) provides a static comparison between two numbers. By mastering these concepts, we can better navigate the complexities of data and make informed decisions based on statistical evidence.

在我们的日常生活中，我们经常会遇到各种统计数据和测量，这些数据帮助我们理解周围的世界。有两个重要的术语经常出现在这种情况下，即rate（比率）和ratio（比例）。虽然这些术语有时可以互换使用，但它们具有独特的含义，对于准确解读数据至关重要。rate（比率）是一个度量，表示两个数量之间的关系，通常指示一个数量如何随着时间的推移而相对于另一个数量变化。例如，当我们谈论一个城市的犯罪rate（比率）时，我们是指在特定时期内，每千名居民报告的犯罪数量。这种测量有助于政策制定者和执法机构评估他们在减少犯罪和改善公共安全方面策略的有效性。另一方面，ratio（比例）是两个数字之间的定量关系，显示一个值包含或被另一个值包含的次数。比例可以以各种形式表达，例如分数、小数或百分比。例如，如果一个教室里有10个男孩和5个女孩，那么男孩与女孩的ratio（比例）可以表示为10:5，简化为2:1。这意味着每两个男孩就有一个女孩在课堂上。理解比例在数学、金融和科学等领域至关重要，因为它们提供了不同数量之间的清晰比较。在经济学和公共卫生等领域，rate（比率）和ratio（比例）之间的区别尤为重要。例如，在分析经济增长时，经济学家可能会查看一个国家GDP在特定时期内的增长rate（比率），这表明经济相较于前几年增长的速度。相反，在评估收入不平等时，研究人员可能会使用富裕和贫困人口之间的收入ratio（比例）来说明财富分配的差距。此外，理解这些概念也可以增强我们在解读新闻文章或报告时的批判性思维能力。例如，一则标题可能声明“失业rate（比率）今年下降了2%。”这个陈述提供了情况的快照，但并没有给出完整的图景。调查这一下降在实际失业人数方面意味着什么，以及与前几年的比较是至关重要的。同样，当一份报告提到学校男孩和女孩的入学ratio（比例）为3:1时，我们应该考虑这一比例对教育中的性别平等的影响。总之，虽然rate（比率）和ratio（比例）都是理解数量之间关系的重要工具，但它们在分析和解释中发挥着不同的作用。rate（比率）通常涉及时间组件，并表示随时间变化，而ratio（比例）提供两个数字之间的静态比较。通过掌握这些概念，我们可以更好地驾驭数据的复杂性，并根据统计证据做出明智的决策。