primer
n 初级读本（prim+er→第一本书）
释义2：
primer
/ 5prImE /
primer¹◙ noun1. [mass noun] a substance used as a preparatory coat on previously unpainted wood, metal, or canvas, especially to prevent the absorption of subsequent layers of paint or the development of rust• 底层涂料，底漆 a cap or cylinder containing a compound which responds to friction or an electrical impulse and ignites the charge in a cartridge or explosive• 火帽，底火；点火药 a small pump for pumping fuel to prime an internal-combustion engine, especially in an aircraft• （尤指飞机内燃发动机的）启动注油泵 [Biochemistry] a molecule that serves as a starting material for a polymerization process• [生化] 引物，引子
primer²◙ noun1. an elementary textbook that serves as an introduction to a subject of study or is used for teaching children to read• 识字课本，初级读本；入门书【语源】
1. late Middle English: from medieval Latin primarius (liber) 'primary (book') and primarium (manuale) 'primary (manual')
俄语/英语字母转换