?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
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。