n.红土；代赭石
v.用红土做记号；涂红土
Teacher:Boys,I have a ruddle for you.It has a beautiful feather,and it can wake you up every morning.What is it,Tom? （中文翻译：老师：“男孩们，我有一个谜语给你们猜：它有漂亮的羽毛，并且它可以在每天早上叫醒你。它是什么，汤姆？”
Discussion of Best Ways of Processing Ruddle 中药代赭石最佳炮制方法探讨
Study on the Extraction Method of Angelica, Ruddle, etc. Of Zhepujiuweirunzao Tang 赭朴九味润燥汤中的当归代赭石等的提取工艺研究
1.Teacher:Boys,I have a ruddle for you.It has a beautiful feather,and it can wake you up every morning.What is it,Tom? （中文翻译：老师：“男孩们，我有一个谜语给你们猜：它有漂亮的羽毛，并且它可以在每天早上叫醒你。它是什么，汤姆？”
ruddle sheep. 用代赭石给羊涂标记
