| |||
challenging; hard; strenuous; gnarly (shamild7) | |||
ball-busting (сил: O Man, that was a real ball-busting job. I hope I never have to do that again Taras) |
требующий напряжения: 23 phrases in 8 subjects |
Aviation | 2 |
Aviation medicine | 1 |
Diplomacy | 1 |
General | 12 |
Makarov | 3 |
Mechanic engineering | 1 |
Programming | 2 |
Psychology | 1 |