供求

gōng qiú supply and demand (economics)

信息

xìn xī information; news; message

平台

píng tái platform; terrace; flat-roofed building

的

de of; ~'s (possessive particle); (used after an attribute); (used to form a nominal expression); (used at the end of a declarative sentence for emphasis)

dí really and truly

dì aim; clear

dī see 的士[di1 shi4]

作用

zuò yòng to act on; to affect; action; function; activity; impact; result; effect; purpose; intent; to play a role; corresponds to English -ity, -ism, -ization; CL:個|个[ge4]

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