阿: Prefixes added to titles: A-Da. A-Ye. A-Die. Arhat. A-Mao. A-Po. A-Di. A-Zi.
杜: Du Kang, Du Fu. The character "Du" refers to the sweet pear tree, as stated in the "Shuowen Jiezi" dictionary: "The male is called 'Tang', and the female is called 'Du'."
Meaning: The name 'A Du' is a phonetic translation, harmonious in sound, simple to remember, and carries a sense of familiarity.