The land around the historic ci ty of Oaxaca in Mexico is very hard for people to move across. So, many of the native cultures in this region- some that have developed for over 13,000 years—have been kept safe. This means their traditions, as well as their unique foods, are still around today. In fact, it is this complex mix of native traditions and cultures that makes Oaxacan food—for example, the seven types of mole 2 it is famous for— one of a kind. (请将文中黑体的单词填入相应的表示它意思的空格中)