外推法

wài tuī fǎ extrapolation (math.); to extrapolate

是

shì is; are; am; yes; to be

shì variant of 是[shi4]; (used in given names)

什么

shén me what?; who?; something; anything

方法

fāng fǎ method; way; means; CL:個|个[ge4]

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