A book is a well of knowledge.

书是知识的源泉。

youdao

Though a well of knowledge herself, our human guide had also handed us digital ones.

尽管导游本人已经很学识渊博了，她还是给了我们几个电子版的导游设备。

youdao

Though a well of knowledge herself, our human guide had also handed us digital ones.

尽管导游本人已经很学识渊博了，她还是给了我们几个电子版的导游设备。

youdao