挡箭牌

shield / (fig.) excuse

to resist / to obstruct / to hinder / to keep off / to block (a blow) / to get in the way of / cover / gear (e.g. in a car's transmission)

to arrange / to put in order

variant of 擋|挡[dang3]

arrow / CL:支[zhi1]

Wrigley (chewing gum company)

mahjong tile / playing card / game pieces / signboard / plate / tablet / medal / CL:片[pian4],個|个[ge4],塊|块[kuai4]