working knowledge meaning in Hindi

Examples

1. The older account demonstrated a working knowledge of Wikipedia early on.
2. Ali speaks German, and has a working knowledge of English.
3. But she has accumulated a working knowledge of Oscar politics.
4. So Mitchell has a strong working knowledge of Georgia's system.
5. By now we had a passable working knowledge of brat and bun.
6. Getting a working knowledge of the more subtle points can take years.
7. There are not enough Wikipedians with a working knowledge of the language.
8. All Secretaries-General have had a working knowledge of both languages.
9. They speak Bhojpuri, but many now have working knowledge of Hindi.
10. He has a good working knowledge of our system,