n.蓝色;[复数](美国海、陆、空三军穿的)蓝色制服;蓝颜料;[the blue(s)][用作单数或复数]布鲁斯(歌曲)(一种伤感的美国黑人民歌);
adj.蓝色的;沮丧的,忧郁的;下流的;
vt.把…染成蓝色;使成蓝色;给…用上蓝剂;用上蓝剂于;
vi.变成蓝色,呈蓝色;
例句:
He was wearing a pair of blue overalls.
他穿着蓝色的工作裤.
Some people find it difficult to discern blue from green.
有些人很难分辨蓝色与绿色.
He had on a blue and white checked shirt and jeans.
他穿了件蓝底白格的衬衣和牛仔裤.