ʻUfiʻufi ʻa e ngaahi tuʻunga ʻoku fakatau ki methane lolotonga, tokanga taha ki he fakaʻehiʻehi mo e malu ʻi he ngaahi ʻatakai ʻoku methane ʻi ai.
ʻUfiʻufi ʻa e ngaahi tuʻunga ʻoku fakatau ki methane lolotonga, tokanga taha ki he fakaʻehiʻehi mo e malu ʻi he ngaahi ʻatakai ʻoku methane ʻi ai.