供需

gōng xū supply and demand

平衡

píng héng balance; equilibrium

点

diǎn point; dot; drop; speck; o'clock; point (in space or time); to draw a dot; to check on a list; to choose; to order (food in a restaurant); to touch briefly; to hint; to light; to ignite; to pour a liquid drop by drop; (old) one fifth of a two-hour watch 更[geng1]; dot stroke in Chinese characters; classifier for items

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]

理解

lǐ jiě to comprehend; to understand; comprehension; understanding

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