two-by-two
| frequency table
| two by two | |
| math. | de dos en dos |
| Frequency table | |
| pharma. | Tabla de frecuencias |
| |||
| de dos en dos (e.g., The soldiers marched two by two = Los soldados marchaban de dos en dos) | |||
|
two-by-two : 20 phrases in 7 subjects |
| Electronics | 2 |
| Finances | 1 |
| General | 2 |
| Law | 2 |
| Mathematics | 3 |
| Statistics | 6 |
| United Nations | 4 |