[/ˈpraɪmə(r); ˋprɪmɚ/] n (dated 旧) textbook for people just starting to study a subject 初级读本; 入门书: a Latin primer 拉丁文入门. primer 2 [/ˈpraɪmə(r); ˋpraɪmɚ/] n
用法: 1 [U, C] substance usedto prime3(2) a surface for painting （上油漆用的）底层涂料, 底漆.
用法: 2 [C] amount of explosive in a smallcontainer used to explode the main charge of gunpowderin a cartridge, bomb, etc 底火; 火帽; 点火药.