 |
| |||
| understand one's business thoroughly; know one's onions; have been around the block (These guys are just top quality people and players, and then you look and see all the experienced guys who have been around the block. 4uzhoj) | |||
| know one's subject | |||
| know one's shit (The engineers who designed this know their shit. joyand) | |||
| хорошо знать своё дело: 2 phrases in 2 subjects |
| General | 1 |
| Makarov | 1 |