In America, the pronunciation /'praɪmə/ is used for meaning 1, and /'prɪmə/ for meaning 2. 美国英语中,义项1读作 /'praɪmə/,义项2读作 /'prɪmə/。
1 N-MASS 底漆;底层涂料 Primer is a type of paint that is put onto wood in order to prepare it for the main layer of paint. 底漆;底层涂料
2 N-COUNT 初级读本;启蒙书;入门书 A primer is a book containing basic facts about a subject, which is used by someone who is beginning to study that subject. 初级读本;启蒙书;入门书 [old-fashioned]
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