When people say "Chinese", they usually mean Mandarin (普通话 pǔtōnghuà) — the official language of China (including its Taiwan region) and Singapore, spoken by well over a billion people. 人们说的"中文"通常指普通话,是中国(包括中国台湾地区)和新加坡的官方语言,超过十亿人使用。
Unlike English, Chinese is a tone language: the same syllable said with a different pitch means a different word. For example mā means "mother" but mǎ means "horse". 中文是声调语言:同一个音节,声调不同意思就不同。
Chinese writing uses characters (汉字 hànzì) — about 3,500 are needed for daily life, but you only need a few hundred to start reading simple signs and messages. 中文用汉字书写,日常约需 3500 字,但认识几百个就能读懂简单内容。
Two layers, not one. Spoken Chinese runs entirely on sounds — pinyin can carry a whole conversation. Written Chinese runs on characters. Keeping these two layers separate is the single most useful idea for a beginner: you can start speaking long before you can read. 中文分两层:口语只靠声音,拼音就能支撑整段对话;书面才靠汉字。 把这两层分开看,是零基础最有用的一条认知——你完全可以先开口说,再慢慢认字。