túshūguǎn / yuán / xiàng / dúzhě / jièshào / le / Gǔténgbǎo / Jìhuà / tígōng / de / miǎnfèi / diànzǐshū / zīyuán

图书馆员向读者介绍了古腾堡计划提供的免费电子书资源。

The librarian introduced readers to the free e-book resources provided by Project Gutenberg.