堤坝上有一个小孔,小股水流正从孔中涌出。
There was a small hole in the dike , through which a tiny stream was flowing .
A组第6周时股骨头颈部骨孔模糊,第14周时骨孔消失。
In Group A , at the 6th week the hole between femoral head and neck is fuzzy , at the 14th week bone hole is vanishing .