crayon
n
pencil or stick of soft coloured chalk, wax or charcoal, used for drawing (绘画用的)铅笔, 彩色粉笔, 蜡笔, 炭笔
[attrib 作定语]
a crayon drawing 彩色蜡笔画. crayon, v [I, Tn] draw (sth) with crayons 用彩色粉笔、 蜡笔或炭笔绘画.
In the first place, any scientific study requires that there be no preferential weighting of one or another of the items in the series it selects for its consideration.