他用粉笔在地上清晰地勾勒出比赛场地的边界。
He used chalk to ___delineate the boundaries of the playing field on the ground.
建筑师清晰地勾勒出了新建筑的轮廓。
The architect carefully ___delineated the outline of the new building.
这份地图精确地描绘了城市的主要街道和地标。
The map clearly ___delineates the city's main streets and landmarks.
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