stair head

同根派生

Generally speaking, this kind is adjusted can be in of stair head, two class have tip, and the middle keeps changeless.
一般而言，这种调整会在楼梯的首、末两级进行，而中段保持不变。
Of alleged stair head, end pace, it is the footfall of the first class that connects with the ground, with the last class footfall with conterminous floor.
所谓楼梯的首、末步，就是与地面相接的第一级踏步，与楼板相接的最后一级踏步。
She nestled her head on his shoulder.
她将头依偎在他的肩上。
The child was sitting on the bottom stair.
那孩子正坐在楼梯最下面的一级上。
The deer lowered its head to drink from the pond.
鹿低下头去喝池塘里的水。