有帮助，但是就是不是因为它颜色有帮助，是自己要区分，其实没有这个颜色同

It’s helpful, but it’s not because the color is helpful, it’s because you have to distinguish it yourself. In fact, if this color is the same color, the waiter in the store will tell us that the three layers are of different hardness or have different hardness. Its characteristics, then we can understand it after listening to it, some do not necessarily have to be distinguished by color, if you must use color to distinguish, some people will worry that the color you add is not environmentally friendly.

Helpful, but not because its color is helpful, is their own to distinguish, in fact, there is no such color is the same color, by the shop attendants and we introduced to tell us that our three layers are different hardness, or have different characteristics, then we can understand, there is not necessarily to use color to distinguish, if you must use color to distinguish, some people will worry about your added color is not environmentally friendly.

It's helpful, but it's not because the color is helpful. We have to distinguish it by ourselves. In fact, if the color is not the same color, the waiter in the store will introduce it to us and tell us that the three layers are of different hardness or have different characteristics. We can also understand that there is no need to distinguish them by color, if you have to use color To distinguish, some people will worry that the color you add is not environmentally friendly.