"A thin line like this means 15 centimeters when translated into real property," says Chen, pointing to an obscured boundary line on the map. "If the paper is wrinkled and folded, it is even harder to estimate the errors."
「這條細線還原到實地上可能就有十五公分寬」，他指著圖上一條略嫌模糊的經界線，「如果圖紙有皺摺，誤差更是難以估計。」