用不完的, 无穷尽的, 不知疲倦的的英文

inexhaustible

• 用不完:    too many or too mu ...
• 的:    4次方是 The fourth po ...
• 无穷:    infinite; endless; ...
• 尽:    exhaust; finish
• 不知:    not to know; have ...
• 疲倦:    tired; weary; fati ...