Human language has two major forms: the spoken form and the written form. Listening‑speaking belong to oral language, while reading‑writing belong to written language. They are closely connected, yet quite different.
人类语言分为两大形式：口头形式与书面形式。听‑说属于口头语言，读‑写属于书面语言。二者联系紧密，但又存在很大区别。
Listening‑speaking is primary. Spoken language appeared long before writing. For thousands of years, human beings communicated only by speech. Every normal human can speak and listen. Oral language is natural, spontaneous and used in daily face‑to‑face interaction. It depends heavily on context, tone of voice, gestures and facial expressions. Misunderstandings can be repaired immediately during conversation.
听说具有首要性。口头语言远早于文字出现。数千年来人类仅依靠言语进行交流。每个正常人都具备听说能力。口头语言自然、即兴，多用于日常面对面交际，高度依赖语境、语调、手势与面部表情。对话过程中产生的误解可以立刻得到修正。
Reading‑writing is secondary. Writing is a human invention. Not all cultures have a writing system. People must receive special training to master reading and writing. Written language is usually more formal, organized and complete. It can be kept permanently and spread across time and space. Without immediate physical context, written texts rely entirely on words themselves to convey meaning.
读写是第二位的。文字是人类的发明，并非所有文化都拥有文字系统。人们必须经过专门学习才能掌握读写。书面语言通常更正式、有条理、完整。书面内容可以永久保存，跨越时间与空间进行传播。书面文本没有即时的现实语境，完全依靠文字本身传递含义。
Oral and written languages influence each other. Spoken expressions may enter written works; written rules also shape people’s speech. A full mastery of language requires competence in both oral and written channels.
口头语言与书面语言相互影响。口头表达会进入书面作品，书面规范同样会塑造人们的言语。完整掌握一门语言，需要同时具备口头与书面两种渠道的能力。