用英语学英语口语：“负一楼，负二楼”英语怎么说？
“鱼”中有“鱼”口语训练，我们不打算“告诉你这个单词用英语怎么说？”来学得“负一楼”的英语是什么？
我们用“负一楼，负二楼”做英语口语训练。
跟我“说英语”：
1. Well, we have ground floor, the first floor, the second floor,ans so on.
2. But, what is the floor underground called?
Is it Underground 1, Underground 2,and so on?
3. Well, we have two ways to say it：
Underground One, Underground Two,Or：
Basement One, Basement Two, as you can see it in the elevator/lift showing：
B2,B1,G,1,2,3,and so on.
