4 sentences

1. 这款新手机在市场上非常畅销。

   zhè kuǎn xīn shǒu​jī zài shì​chǎng shàng fēi​cháng chàng​xiāo.

   This new mobile phone is selling very well on the market.

   Source: Dong Chinese Dictionary

2. 这部电影是由一部畅销小说改编的。

   zhè bù diàn​yǐng shì yóu yī bù chàng​xiāo xiǎo​shuō gǎi​biān de.

   The movie was adapted from a bestselling novel.

   Source: Dong Chinese Dictionary

3. 《格雷的五十道阴影》是一本全球畅销的小说。

   《 Gé​léi de wǔ​shí dào yīn​yǐng》 shì yī běn quán​qiú chàng​xiāo de xiǎo​shuō.

   Fifty Shades of Grey is a global bestselling novel.

   Source: Dong Chinese Dictionary

4. 他的第一部小说就一炮打响，迅速成了畅销书。

   tā de dì​yī bù xiǎo​shuō jiù yī pào dǎ​xiǎng, xùn​sù chéng le chàng​xiāo shū.

   His first novel was an instant success and quickly became a bestseller.

   Source: Dong Chinese Dictionary