3 sentences

1. 他们的小弟弟没有踢足球。

   tā​men de xiǎo​dì​di méi​yǒu tī zú​qiú.

   Their little brother did not play football.

   Source: CCMatrix

2. 请保佑妈妈、爸爸和我的小弟弟。

   qǐng bǎo​yòu mā​ma, bà​ba hé wǒ​de xiǎo​dì​di.

   Please bless Mommy and Daddy and my little brother.

   Source: OpenSubtitles

3. 「为什么要叫我小弟弟？」

   " wèi​shén​me yào jiào wǒ xiǎo​dì​di?"

   “Why do you call me little brother?”

   Source: CCMatrix