"地道"这个词用英语怎么翻译？

如果是说语言很“地道”的话，可以是 idiomatic

如果说某个人是地道的哪里人，可以是：He is a XXX(地名) local. He is a native person who was born in ....

如果说是地底的隧道的话，可以是：subway等

1.a tunnel (especially one that is below ground level); an underground passage; an underpass; a gallery
2.real; pure; genuine; typical
3.well-done; thorough

同上了

native, local,

pure 纯正的

cuniculus subway underground