供需

gōng xū supply and demand

情况

qíng kuàng circumstances; state of affairs; situation; CL:個|个[ge4],種|种[zhong3]

怎么

zěn me how?; what?; why?

zěn me variant of 怎麼|怎么[zen3 me5]

填

tián to fill or stuff; (of a form etc) to fill in

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