Usted buscó: pestle and mortar (Inglés - Suajili)

pestle and mortar
kinu na mchi

they walked through the park, often trying to emerge onto the road, but heard many bombs and mortars and so had to go back into the forest.
walikatiza mbugani, wakitarajia kutokeshezea barabarani, lakini walisikia milio ya mabomu na na mizinga na hivyo iliwabidi kurudi tena msituni.