据合理估计，藏书中一定有许多供他本人写作时用的参考书，而且占了相当大的比例。

据合理估计，藏书中一定有许多供他本人写作时用的参考书，而且占了相当大的比例。的英文翻译

基本释义

• It is reasonable to suppose that it contained many of the sources he used in his own writings, and they alone would make up a sizable collection.