1 sentence

1. 清真寺的屋顶是一个巨大的金属圆顶，直径17米。

   qīng​zhēn​sì de wū​dǐng shì yī​ge jù​dà de jīn​shǔ yuán​dǐng, zhí​jìng17 mǐ.

   The mosque's roof is a huge metal dome of 17 meters in diameter.

   Source: CCMatrix