yǎn jiǎng / shí / tā / yì biān / jiǎng jiě / yì biān / fān yè / chá kàn / xià yì zhāng / huàn dēng piàn

演讲时，他一边讲解，一边翻页查看下一张幻灯片。

During the presentation, he explained the material while turning the pages to check the next slide.