邊際成本

marginal cost

side / edge / margin / border / boundary / CL:個|个[ge4] / simultaneously

suffix of a noun of locality

limit / bound / boundary / (economics) marginal

border / edge / boundary / interval / between / inter- / to meet / time / occasion / to meet with (circumstances)

surname Cheng

to succeed / to finish / to complete / to accomplish / to become / to turn into / to be all right / OK! / one tenth

(manufacturing, production etc) costs

root / stem / origin / source / this / the current / original / inherent / originally / classifier for books, periodicals, files etc