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300页（230字）
形容文思敏捷，口才好，例李老师学问渊博，出口成章，学生都佩服得五体投地。
Mr．Li，their teacher，is a widely read man and words flow from his mouth in elegant style．Every student admires him from the bottom of his heart．