чередовать
variare [1] (laborem
бактериологический
bacteriologicus [a, um];
стелить
sternere [o, stravi,
addere, o, didi, ditum (epistulas in eumdem fasciculum); indere; adjungere, o, xi, ctum (epistulam in fasciculum); collocare [1]; inserere, o, ui, sertum; interponere, o, posui, positum;