berninger 基本例句 贝尔宁格 A study by Berninger found that in grades two, four, and six, children wrote more words, faster, and expressed more ideas when writing essays by hand than when typing on a keyboard. 贝尔宁格的研究发现，二年级，四年级以及六年级的孩子，与打字相比，他们手写的单词量更大，速度更快，并能表达更复杂的思想。 examw