1570s, "written on the margin," from Medieval Latin marginalis, from Latin margo "edge, brink, border, margin" (see margin (n.)). Sense of "of little effect or importance" first recorded 1887. Related: Marginally.
权威例句
1. For low-paid workers, the marginal tax rate is at least 75%.
对于低收入的工人来说,边际税率至少为75%。
2. This is a marginal improvement on October.
这是对10月份的一个小小改善。
3. a marginal improvement in weather conditions
天气条件的略微好转
4. He won the most marginal seat by only two votes.
他只以两票的微弱优势当选.
5. This once important social group is becoming more and more marginal.