AlliumCepa: Thank you very much for your help.
I'm sorry. I have typed mistake "dose" in. The confusion seems not to have happened.
I was taught "Po,dlexjeq l.does smfkiur me,beujkf"="Здравейте, владея японски перфектно" by two Bulgarians. I could not understand the conversion rule in two sentences, even by the Web sites you taught.

Please! Could you instruct me in?