fusain 的定义
plural fu·sains [fyoo-zeynz, fyoo-zeynz; French fy-zan] /fyuˈzeɪnz, ˈfyu zeɪnz; French füˈzɛ̃/ for 2.
- a fine charcoal used in drawing, made from the wood of the spindle tree.
- a drawing made with this charcoal.
- a blackish-gray, friable component of coal with a silky luster that leaves a charcoallike mark.