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marginal + noun
常用于经济学，表示额外一单位产量带来的成本或收益。
The company is analyzing marginal costs to optimize production.
公司正在分析边际成本以优化生产。
勉强够本的
先理解核心含义，再看它在真实句子里的用法。
勉强够本的
marginal
The company is analyzing marginal costs to optimize production.
公司正在分析边际成本以优化生产。
属于、关于或位于边缘或边界附近的；也指位置和边界的比喻用法。
Of, relating to, or located at or near a margin or edge; also figurative usages of location and margin (edge).
由微小差距决定的；具有由微小差距决定的显著特征。
Determined by a small margin; having a salient characteristic determined by a small margin.
与商品生产或消费每增加一单位所引起的变化相关的。
Pertaining to changes resulting from a unit increase in production or consumption of a good.
被边缘化的。
Marginalized.
The factory's profits were so marginal that the owner thought about closing it down.
工厂利润勉强够本，以至于老板考虑关门大吉。
They kept the small shop open because it still produced a marginal income for the family.
他们让小店铺继续营业，因为它仍能为家里带来勉强够本的收入。
After paying all the bills, her monthly earnings were marginal, so she wanted a better job.
付清所有账单后，她每月的收入勉强够本，所以她想找更好的工作。
常用于经济学，表示额外一单位产量带来的成本或收益。
The company is analyzing marginal costs to optimize production.
公司正在分析边际成本以优化生产。
表示变化或效果很小，不显著。
The improvement in sales was marginal.
销售额的增长微乎其微。
表示某事与核心问题相比不重要或处于边缘。
This issue is marginal to the main discussion.
这个问题对主要讨论来说是次要的。
Not this
Many marginals are ignored by society.
Use this
Many marginalized people are ignored by society.
中文学习者常将marginal误用作名词表示'边缘人'，但marginal作为名词仅用于经济学等专业语境。应使用形容词marginalized或短语on the margins来描述被边缘化的人群。
Not this
The policy should not marginal the poor.
Use this
The policy should not marginalize the poor.
marginal是形容词，不能直接用作动词。表示'使边缘化'需用动词marginalize。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
边际成本
The marginal cost of producing one more unit is very low.
多生产一个单位的边际成本很低。
边际收益
We need to compare the marginal benefit with the marginal cost.
我们需要比较边际收益与边际成本。
微小改进
There was only a marginal improvement in test scores.
考试成绩仅有微小改进。
边际效应
The marginal effect of the policy on employment was negligible.
该政策对就业的边际效应微乎其微。
微小的差异
There is only a marginal difference between the two proposals.
两个提议之间只有微小的差异。
边缘席位（指选举中候选人与对手得票率非常接近的席位）
The MP is fighting to hold onto his marginal seat in the upcoming election.
这位议员正在为在即将到来的选举中保住他的边缘席位而奋斗。
边缘生活（仅能维持基本生存的生活状态）
The family lived a marginal existence, barely able to afford food and rent.
这家人过着边缘生活，几乎负担不起食物和房租。
旁注（页面空白处的手写注释）
The student's textbook was filled with marginal notes and highlights.
学生的课本上写满了旁注和重点标记。
Use marginal naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象试卷边缘(margin)上的答案，刚好达到及格线——最低限度的。
通常用于描述数量或程度刚好达到最低限度，常见于经济、数学等专业语境，在日常英语中也可使用，属于中性语体。
All these words end with the spelling '-inal' and share a similar ending /ɪnəl/, but their stressed vowels differ. Only 'cardinal' has the same stressed vowel /ɑː/ as 'marginal', yet the following sounds differ (/rd/ vs /rdʒ/), so they do not rhyme perfectly. 'Criminal' and 'original' have /ɪ/, 'terminal' has /ɜː/, 'nominal' has /ɑː/ (but with a different consonant), and 'final' has /aɪ/. None rhyme exactly with 'marginal'.
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.