tireless
🇺🇸
/ˈtaɪərləs/
🇬🇧
/ˈtaɪələs/
adjective
R
working very hard without getting tired
She was tireless in helping others, always ready to lend a hand.
她帮助他人时不知疲倦，总是乐于伸出援手。
translation
孜孜不倦