世界上万事万物都在运动、变化、发展,语言也是这样。语言的变化涉及语音、语法、语汇三方面。“曾经”一词用法的变迁,正印证了这一不刊之论。“曾经”在古代汉语中是一个动词性短语,表示曾经历过。如李商隐的名句:“曾经沧海难为水,除却巫山不是云。”这里的“曾经”不是一个双音节词,“曾”和“经”要分开来解释。 Everything in the world is moving, changing, and developing. So is language. Language change involves three aspects: voice, grammar, and vocabulary. The change in the use of the term “” once“ is confirming this non-publication. ”Dog“ is a verb phrase in ancient Chinese, indicating that it has been experienced. Such as Li Shangyin’s famous saying: ”I used to be a shipwrecked water, except that Wushan is not a cloud.“ ”“ ” here “ is not a two-syllable word, ”before “ and ”after " should be interpreted separately.