上游

• ピンイン: shàng yóu
• 漢字の分解: 上 = 一 + 卜 (upper); 游 = 氵+ 斿 (flow, travel through water)

意味

上流（上流域／供給網の上流）

Literally refers to the part of a river nearer to its source. Figuratively used in business/economics to refer to upstream industries (raw materials, production). Opposite: 下游.

例文

1. 这条河流的上游地区水质良好，适合饮用。
2. 该企业积极布局上游原材料供应链。
3. 控制上游资源是企业竞争的关键。

使い方ガイド

場面: geography, business, economics

トーン: neutral

正しい言い方

• 洪水发生在上游，下游城市需提前做好防洪准备。(The flood occurred upstream; downstream cities need to prepare flood defences in advance.)
• 企业通过收购上游供应商降低了成本。(The company reduced costs by acquiring upstream suppliers.)

避ける言い方

• 混淆上游与前期 — 上游 has a specific industrial/geographical sense; 前期 means earlier stage of a project

起源と歴史

上 (upper) + 游 (flow/reach of river) — the upper reach of a waterway

文化的背景

世代: All ages

社会的背景: Universal