alapkőzet betyr engelsk

bedrock▼◼◼◼noun
[UK: ˈbed.rɒk] [US: ˈbed.rɑːk]

host rock▼◼◻◻noun
[UK: həʊst rɒk] [US: hoʊst ˈrɑːk]

rock-bed▼noun
[UK: rɒk bed] [US: ˈrɑːk ˈbed]