일본에서 관상용으로 개량한 크고 화려한 색깔의 잉어.
A large, colorful variety of common carp, originally bred in Japan for ornamental purposes in ponds and water gardens.
예문:
"The garden features a tranquil pond filled with vibrant orange and white koi."
"Collectors often pay thousands of dollars for rare breeds of koi with unique patterns."
"Maintaining the water quality is essential for the health of the koi in the outdoor tank."