1, さよぅなら Pronunciation: Goodbye.
2. The oral expressions are "では" and "また", and the pronunciation is: Wow Mata.
You can also say じゃ, ね. Read: read with ne.
According to Wikipedia: Japanese, whose characters are called Japanese, is the main language used by Yamato people in the Japanese archipelago, and Japanese is also one of the languages of big countries.
Although Japan does not clearly define its official language in law, various laws and regulations stipulate the use of Japanese, and Japanese is also taught as a national language in school education.
It is an indisputable fact that Japanese is the common language of Japan. But it is only the de facto official language, similar to the de facto national status of American English. In the field of Japanese grammar, unless otherwise specified, Japanese generally refers to modern standard Japanese based on middle-class dialects in Edo Yamagata, and is sometimes called "* * * lingua franca".