This sentence means that a person can solve problems by words or force, but he can't express his thoughts or feelings in colourful language.

"Being able to write and fight" is an idiom, which means that a person has both literary talent and martial arts or fighting capacity. And "fragrant breath" is a metaphor, which means that a person speaks beautifully and tactfully, and his language is full of fragrance and charm.

Therefore, this sentence means that a person can solve problems by words or force, but he has difficulty in expressing his thoughts or feelings and lacks eloquence or expressive ability. This may be because this person is introverted, lacks self-confidence, or lacks language expression ability.