柯林斯詞典pith helmet 1. N a lightweight hat made of pith that protects the wearer from the sun 軟木遮陽帽 (Also called topee, topi) 返回 pith helmet劍橋詞典a large , hard, white hat worn to give protection from the sun . It was worn in the past by Europeans who were in hot countries . 遮陽白帽 返回 pith helmet