()mineral water is there in the bottle?
The starting air bottle should be pumped up to maximum pressure by the () before start of the engine.
----The baby is hungry. ----But there's()milk in the bottle.
()mineral water is there in the bottle?
Before starting the engine the air bottle should be ().
Before starting the engine the air bottle should be ().
遗传瓶颈(Genetic bottle neck)
The starting air bottle should be pumped up to maximum pressure by the () before start of the engine.
----The baby is hungry. ----But there's()milk in the bottle.