But in our daily conversation, 地道 has quite a few different interesting usages. Let's see some examples:
She speaks perfect mandarin.
His work is really well-done.
In above sentences, 地道 means perfect, or skill up to standard.
The food in that Chinese restaurant is really authentic.
In this sentence, 地道 means authentic.
This is genuine Longjing tea.
Here, 地道 means from the place well-known for a certain product;
That person is not an honest one. He cheated.
In this sentence, 地道 means honest, obey the common moral rules.