'The first number is 3.'
[Note: bangou most commonly means phone number, but here it wouldn't make sense]
'It is the first door on the right.'
'The second number is 9.'
'The third number is 7.'
'(This/That/She) is my younger sister.'
'(These/Those/They) are our parents.'
'It is the second door on the left.'
"Shita" is a Japanese word and in English it means "Down"
Where's the bathroom.
I think you mean "genki desu ka". The correct way of spelling it in English would be "ogenki desu ka". It is Japanese for "How are you?" One would usually answer by saying "Genki desu. Anata wa?' which means "I'm fine, and you?"
"O-ai dekite ureshii desu" is a Japanese phrase and in English it means "Nice to meet you"
Bad romaji. Corrected: 'watashi wa anata no tsubasa desu koto wo shitteiru na'. It means 'You know that I am your wings'.
"Boku wa oni desu" means "I am a demon" in Japanese. "Boku" is a casual way to say "I" or "me," while "oni" translates to "demon" or "ogre." The verb "desu" is used for emphasis, similar to saying "am" in English.