lǎo / shī / ràng / wǒ / men / huà / yí / ge / sì / miàn / léng / zhuī / bìng / biāo / chū / tā / de / dǐng / diǎn

老师让我们画一个四面棱锥，并标出它的顶点。

The teacher asked us to draw a tetrahedral pyramid and mark its vertices.