คุณ SR กรุณา แลกเปลี่ยนมาแล้วค่ะ

{Good morning}[Fellow teachers,]

Ladies and Gentlemen,

On behalf of Thai  teachers [of]  Prayaprasertsutrasai (Krajang  Singhaseni) School,  Bangkok Thailand.

We do appreciate all  your help.  You have given us  knowledge and shared  with us the  experiences in your  school here.

We are very much  thankful   to  Mr.................the  principle of..............for  the warm welcome and  hospitality.

{And finally} We'd  like to thank all of  you Vietnamese  people for receiving  us and for making us  feel at home – all  our time here.

We hope to be able to return your hospitality and to see you all again.

Thank you once more and goodbye for now.