constituent例句
        The constitution also confers large powers on Brazil's 25 
constituent states.
宪法还赋予巴西的25个成员州很大的权力。
Caffeine is the active 
constituent of drinks such as tea and coffee.
咖啡因是茶、咖啡之类饮品中的活性成分。
Glycerol is a 
constituent of all fats and phospholipids.
甘油是所有脂肪和磷脂的组成部分.