核心词议：
adj. 比例的，成比例的；相称的，均衡的
n. [数] 比例项
proportional 基本解释
adj. 比例的，成比例的；相称的，均衡的
n. [数]比例项，比例量
n. [数]比例项，比例量
速记方法
速记技巧 词源记忆法 来源于拉丁语portio(部分，比率)。
知识扩展
中文词源
proportional 相称的，成比例的
来自proportion,比例，匀称。
中文词源： proportional 相称的，成比例的 来自proportion,比例，匀称。 proportional
精选例句
1、 Loss of weight is directly proportional to the rate at which the disease is progressing.
体重减轻和该病的发展速度成比例。
2、 The passage's suggestion that the total anaerobic energy reserves of a vertebrate are proportional to the vertebrate's size is based on which of the following assumption?
这篇文章提出的脊椎动物的无氧能量储备总量与脊椎动物的体型成正比，是基于以下哪些假设？
1、 P) Let’s call this phenomenon Clear’s Law of Recurrence: The number of people who believe an idea is directly proportional to the number of times it has been repeated during the last year—even if the idea is false.
让我们把这种现象称为清晰的递归定律:相信一个想法的人数与该想法在过去一年中被重复的次数成正比——即使这个想法是错误的。
常见考点例句：
- Countries with parliaments elected by proportional representation are often cursed with myriad political groups .
- 国家和由适当比例的代表选出的议会经常被无数的政治组织所厌恶。
- This change in itself falls far short of the proportional representation that lib dems would like .
- 这种改变本身与自由民主党希望的成比例的代表权相去甚远。
- Replacing the current voting system with a proportional one is a priority for the lib dems , along with wider political reforms .
- 由按比例的投票制度来取代现行制度，是自由民主党优先要考虑的事情，同时还有更广泛的政治改革。
- The haggling over what shape the new administration takes could be hard to stomach for a country unused to the back-room deals that democracies with proportional voting systems rely on to form governments .
- 在讨价还价中，新政权的发展可能很难欣然接受一个不习惯在后面幕后交易国家，依靠成比例的选票系统让民主来产生政府。
- Sunscreens that want to brand themselves as " broad spectrum " must pass a new test that demonstrates protection against both uva and uvb to a proportional degree .
- 想要证明自己是“广范围”的防晒霜必须通过一项新的检测，这项检测能够证实产品是否可以隔离uva和uvb达到一个成比例的程度。
