4 sentences

1. 他是个大块头。

   tā shì gè dà​kuài​tóu.

   He's a big guy.

   Source: OpenSubtitles

2. 他是个大块头，站在人群中格外显眼。

   tā shì gè dà​kuài​tóu, zhàn zài rén​qún zhōng gé​wài xiǎn​yǎn.

   He is a big fellow and stands out in a crowd.

   Source: Dong Chinese Dictionary

3. 他虽然嘴硬，但面对那个大块头时，心里明显发怂了。

   tā suī​rán zuǐ​yìng, dàn miàn​duì nà​gè dà​kuài​tóu shí, xīn​li míng​xiǎn fā​sǒng le.

   Despite his tough talk, he clearly lost his nerve when facing that big guy.

   Source: Dong Chinese Dictionary

4. 那个大块头笨手笨脚的，差点把花瓶打碎了。

   nà​ge dà​kuài​tóu bèn​shǒu​bèn​jiǎo de, chà​diǎn bǎ huā​píng dǎ​suì le.

   That big fellow was so clumsy that he almost broke the vase.

   Source: Dong Chinese Dictionary