Chithunzichi chikuwonetsa mwachidule njira zambiri zomwe madokotala a mano amapangira pafupifupi matani 30 a mercury ku chilengedwe cha United States chaka chilichonse.
Chithunzichi chikuwonetsa mwachidule njira zambiri zomwe madokotala a mano amapangira pafupifupi matani 30 a mercury ku chilengedwe cha United States chaka chilichonse.