6 sentences

1. 你不是我们的大哥。

   nǐ bù shì wǒ​men de dà​gē.

   You are not our big brother.

   Source: OpenSubtitles

2. 这位是我大哥。

   zhèi wèi shì wǒ dà​gē.

   This is my big brother.

   Source: OpenSubtitles

3. 我不能毫无证据就诬陷我大哥。

   wǒ bù néng háo wú zhèng​jù jiù wū​xiàn wǒ dà​gē.

   I cannot accuse my brother of such a thing without any evidence.

   Source: OpenSubtitles

4. 他是我们家的大哥，一直很照顾弟弟妹妹。

   tā shì wǒ​men jiā de dà​gē, yī​zhí hěn zhào​gu dì​di mèi​mei.

   He is the eldest brother in our family and has always looked after his younger siblings.

   Source: Dong Chinese Dictionary

5. 他是这一带有名的黑帮大哥。

   tā shì zhè yī​dài yǒu​míng de hēi​bāng dà​gē.

   He is a well-known triad boss in this area.

   Source: Dong Chinese Dictionary

6. 大哥，我刚好要路过超市，需不需要帮你带点东西回去？

   dà​gē, wǒ gāng​hǎo yào lù​guò chāo​shì, xū bù xū​yào bāng nǐ dài diǎn dōng​xi huí​qu?

   Hey, I'm passing by the supermarket anyway; do you need me to pick anything up for you?

   Source: Dong Chinese Dictionary