yán jiū zhě / tōng guò / gǎi biàn / tàn cè zì / de / wèi zhì / lái / cè liáng / jì yì / de / zhǔn què xìng研究者通过改变探测字的位置来测量记忆的准确性。The researchers measured memory accuracy by changing the position of the probe letter.