?半环线
... 园环面物体 torus object 半环线 douglas' line; linea arcuata; linea semicircularis; semicircular line 北环线 northern link ...
道格拉斯线
道格拉斯半环线
Dixon had returned to United's starting line-up, taking the place of Barry Douglas at left-back.
BBC: Sport - Football - Hamilton 1-3 Dundee United
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