2 sentences

1. 讲台后面已经不再是黑板了，整面墙都是一块电子屏。

   jiǎng​tái hòu​miàn yǐ​jing bù​zài shì hēi​bǎn le, zhěng miàn qiáng dōu shì yī​kuài diàn​zǐ píng.

   There is no longer a blackboard behind the podium, and the entire wall is an electronic screen.

   Source: CCMatrix

2. 保安的办公桌是一个升起的讲台，所以我们不得不仰望他。

   bǎo'ān de bàn​gōng​zhuō shì yī​ge shēng qǐ de jiǎng​tái, suǒ​yǐ wǒ​men bù​dé​bù yǎng​wàng tā.

   The security guard's desk was a raised podium, so we had to look up at him.

   Source: CCMatrix