birthon Basic wordsalso onCEFR Beginners (A1)? CEFR Intermediate (B1)? CEFR Advanced (C1)? Band 1 (BND1)? Band 2 (BND2)? 出生,出身 birthdays birthdays(noun) 生日(birthday的复数) births births(noun) 出生人数,出身,起源(birth的复数形式) birth birth(noun) 出生,出身 birthday birthday(noun) 生日 Forms noun birthdays births birth birthday