the top margin of a page meaning in Chinese
天头
Examples
- The hair of a person with average 10 - 13 10 thousand root plan , so smooth all every the top margin of a page produces long total length to be 50 meters , or every months 1500 meters
一个人的头发以平均10 - 13万根计，那么平均天天头发生长总长度为50米，或每月1500米。