The term carbohydrate suggests a general elemental composition, namely Cx (H20) y, which signifies molecules containing carbon atoms along with hydrogen and oxygen atoms in the same ratio as they occur in water.

• 碳水化合物这个词指通常的元素组成,即C(RO)y,意思是指分子中含有碳原子、氢原子和氧原子,并且氢氧原子的比与它们在水中时相同。