Ariga'to mashti'.
Arigatou Gozaimashita.
Visit www.japanese999.com -- "Dou itashimashite" = "You're welcome" (when answering thank you)
Welcome is Irrashai or Irrashaimase... 'Youkoso.'
This phrase cannot be accurately translated, as even in English it is largely incoherent and ambiguous in nature.
Masachuusettsu e youkoso.
O-kaeri nasai Okaerinasai.
It can be translated as 'Gakkou e youkoso,' written in Japanese as: 学校へようこそ
White when translated from English to Japanese is shiro for shiro means white
Chocolate is 'chokoreeto' in Japanese.
Dog in Japanese is 'inu'.
Domo.
Koibito.
Sakarerumono
Owari