So you have the cabin, which is like X one X two is where the passenger goes with all the seats, those air, what the seats are, and then x three, which is like the undercarriage which might be down here.
所以你有機艙,就像X一X二是乘客去的地方,所有的座椅,那些空氣,座椅是什麼,然後X三,這就像底盤,可能在下面。