@ossobuco,
you are very nice, thank you. about my country, merciful, i don't realize which aspect you mean. of course i hope my country be merciful and in my view in most aspects it is.
the name "rheingold", to be honest, i don't like it very much. actually, i really don't very care the name you suggest pronounce like my chinese name or not. i care the meaning of it. but, thank you very much.
i've thought about "rex", "reg", what do you think? or you can suggest another name for me if you want.