出处：按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第234页（237字）
指弃文就武，放下笔杆去从军，例抗战时期，许多青年学子为了保卫国家，纷纷投笔从戎。
During the Anti-Japanese War，many young students felt the urge to help defend the motherland and thus gave up civilian pursuits to join the army．