1
be proportional to
表示两者在大小、程度等方面成比例。
The punishment should be proportional to the crime.
惩罚应与罪行相称。
比例的, 相称的
先理解核心含义，再看它在真实句子里的用法。
比例的, 相称的
properly related in size, degree, or other measurable characteristics; usually followed by 'to'; having a constant ratio
The punishment should be proportional to the crime.
惩罚应与罪行相称。
与...成常数比。两个量(数)成比例,如果一个量随另一个量算术上直接变化。符号:∝。
At a constant ratio (to). Two magnitudes (numbers) are said to be proportional if the second varies in a direct relation arithmetically to the first. Symbol: ∝.
字体中,字符具有自然(不均匀)宽度(与等宽字体相对)
Of a typeface, having characters with natural (non-uniform) width (in contrast to monospace typefaces).
The amount of sugar you add should be proportional to the amount of flour.
你添加的糖量应该与面粉量成比例。
In a well-designed experiment, the control group is proportional to the experimental group in size.
在精心设计的实验中，对照组与实验组的规模是成比例的。
Her effort in the project was proportional to the reward she received.
她在项目中的付出与所获回报是相称的。
表示两者在大小、程度等方面成比例。
The punishment should be proportional to the crime.
惩罚应与罪行相称。
The pressure is directly proportional to the temperature.
压力与温度成正比。
Speed is inversely proportional to time.
速度与时间成反比。
数学术语，指比例中的一项。
Find the missing proportional in the equation.
求出方程中缺失的比例项。
Not this
The proportional of boys to girls is 2:1.
Use this
The proportion of boys to girls is 2:1.
混淆了名词'proportion'和形容词'proportional'的用法。表示“比例”时应使用名词形式'proportion'。
Not this
The increase is proportional with the decrease.
Use this
The increase is proportional to the decrease.
'proportional'后应接介词'to'表示“与...成比例”，而不是'with'。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
成正比的
The number of hours worked is directly proportional to the output.
工作小时数与产出成正比。
成反比的
Pressure and volume are inversely proportional in a gas.
气体的压强和体积成反比。
与…成比例
The punishment should be proportional to the crime.
惩罚应与罪行相称。
比例代表制
Many countries use proportional representation in their elections.
许多国家在选举中采用比例代表制。
比例税
A proportional tax takes the same percentage from all income levels.
比例税对所有收入水平征收相同百分比的税。
Use proportional naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想：pro（支持）+portion（部分）+al（的）→ 支持各部分按比例分配，即'比例的、相称的'。
通常用于数学和科学领域，表示比例关系；也可用于日常比较，语域中性。
All words share the common spelling pattern '-tional' and end with the sound /ʃənl/ or /ʃənəl/, but they do not rhyme with 'proportional' because the stressed vowel in 'proportional' is /ɒː/ while the stressed vowels in these words differ (e.g., /æ/, /eɪ/, /ɪ/, /əʊ/).
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.