1 sentence for 边际 (biān​jì — marginal)

1. 边际效用递减是经济学的一个基本规律。

   biān​jì xiào​yòng dì​jiǎn shì jīng​jì​xué de yī gè jī​běn guī​lǜ.

   Diminishing marginal utility is a fundamental law of economics.

   Source: Dong Chinese Dictionary