3 sentences

1. 这套西装剪裁非常合体。

   zhè tào xī​zhuāng jiǎn​cái fēi​cháng hé​tǐ.

   This suit is very well-tailored.

   Source: Dong Chinese Dictionary

2. 汉字中大部分都是合体字。

   hàn​zì zhōng dà​bù​fen dōu shì hé​tǐ zì.

   Most Chinese characters are compound characters.

   Source: Dong Chinese Dictionary

3. 这两个机器人合体成了一个威力巨大的超级机器人。

   zhè liǎng gè jī​qì​rén hé​tǐ chéng le yī gè wēi​lì jù​dà de chāo​jí jī​qì​rén.

   The two robots combined into a powerful super robot.

   Source: Dong Chinese Dictionary