本文第三段中的 “At first, hairs will have a limited amount of pigment and they will appear to be grayish in colorIn time, they will lose all of their pigment and will be white. Many things are known to cause graying, and genetics is a very powerful factor可知,色素和基因在头发变白...
When new hairs are replaced,the color or pigment (色素) is also added to them.However,as one ages,this pigment becomes less and less available.At first,hairs will have a limited amount of pigment and they will appear to be grayish in color.In time,they will lose all of their pigment ...
When new hairs are replaced, the color or pigment(色素)is also added to them.However, as one ages, this pigment becomes less and less available.At first, hairs will have a limited amount of pigment and they will appear to be grayish in color.In time, they will lose all of their pigme...
When new hairs are replaced,the color or pigment (色素) is also added to them.However,as one ages,this pigment becomes less and less available.At first,hairs will have a limited amount of pigment and they will appear to be grayish in color.In time,they will lose all of their pigment ...
At first, hairs will have a limited amount of pigment and they will appear to be grayish in color. In time, they will lose all of their pigment and will be white. Many things are known to cause graying, and genetics is a very powerful factor. If one of your parents turns gray at ...
At first, hairs will have a li mite d amount ofpigment an d they will appear to be grayish in color. In time, they will los all of their pigment an d will be whit e. Many things are known to cause graying. an d genet cs is a very powerful factor. If one of your arents ...
本文第三段提到“At first,hairs will have a limited amount of pigment and they will appear to be grayish in color.In time,they will lose all of their pigment and will be white.Many things are known to cause graying,and genetics is a very powerful factor.”由此可以看出,色素和基因在头发...
根据第三段提到的At first,__hairs will have a limited amount of pigment and they will appear to be grayish in color. In time, they will lose all of their pigment and will be white. Many things are known to cause graying, and genetics is a very powerful factor可知,色素和基因在头发变白...
Atfi rst, hairs willhave a limite d amount of pigment an d they will appear to be grayish in color. In time,they will lose all of theirpigment an d will be whit e. Many things are known to cause graying, an d g enetics is a very powerful factor. If one of your pa rents ...