n. blue color or pigment; resembling the color of the clear sky in the daytime
n. blue clothing
n. any organization or party whose uniforms or badges are blue
n. any of numerous small butterflies of the family Lycaenidae
n. 蓝色
a. 蓝色的, 下流的, 忧郁的
vt. 染成蓝色
vi. 变蓝