1, you can't succeed if you don't specialize, and you can't pass if you don't dabble.

2, eyes can't see clearly, ears can't hear each other.

3, learn your specialty, don't flood into a saint.

4, none of them are specialized, not specialized.

5, the gentleman learns expensive, one is clear, and Ming has merit.

6. Earthworms don't have the advantages of claws and strong bones and muscles. They eat Egyptian soil and drink yellow water.