problem | Problem (n) |
problem (n) | Schwierigkeit (f) (n) |
problem (n) (mathematics) | Problem (n) (n) (mathematics) |
problem (n) (difficulty) | Schwierigkeit (f) (n) (difficulty) |
problem (n) | Problem (n) (n) |
problem (n) (difficulty) | Problem (n) (n) (difficulty) |