難以估計 nányǐgūjì inestimable Origin Definitions Defs Strokes Stroke Words Sentences Sents 难以 難以 nányǐ adverb hard to difficult to do; hard to (predict, imagine, etc.)估计 估計 gūjì verbnoun to estimate to estimate, reckon, or calculate; to think that something is likely based on evidence or judgment