外推

wài tuī to extrapolate

式

shì type; form; pattern; style

窗户

chuāng hu window; CL:個|个[ge4],扇[shan4]

怎么

zěn me how?; what?; why?

zěn me variant of 怎麼|怎么[zen3 me5]

关

guān mountain pass; to close; to shut; to turn off; to concern; to involve

Guān surname Guan

图

tú diagram; picture; drawing; chart; map; CL:張|张[zhang1]; to plan; to scheme; to attempt; to pursue; to seek

解法

jiě fǎ solution (to a math problem); method of solving

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