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'."

伟: Greatness, a great man. Often used in male names, it conveys auspiciousness and typically signifies one's lofty aspirations and grand ambitions.