3 sentences

1. 兄弟我初来乍到，请各位多关照。

   xiōng​dì wǒ chū​lái​zhà​dào, qǐng gè​wèi duō guān​zhào.

   I've just arrived here, so please look after me, my friends.

   Source: Dong Chinese Dictionary

2. 小弟初来乍到，还请各位多多指教。

   xiǎo​dì chū​lái​zhà​dào, hái qǐng gè​wèi duō​duō zhǐ​jiào.

   I am new here; please guide me.

   Source: Dong Chinese Dictionary

3. 在下初来乍到，还请各位多多关照。

   zài xià chū​lái​zhà​dào, hái qǐng gè​wèi duō​duō guān​zhào.

   I have just arrived, so I look forward to your kind guidance and support.

   Source: Dong Chinese Dictionary