be made up of 和 be made of 意思上的区别
问题描述：
be made up of 和 be made of 意思上的区别
答
be made up of由…构成、一般是多种构成.如：Water was made up of oxygen and hydrogen.水由氧气和氢构成.
be made of由…制成且材料不发生化学变化、可看出原料的.如Chair is made of wood.椅子是木头做的.