长期以来

• ピンイン: cháng qī yǐ lái
• 漢字の分解: 长 = simplified 長; 期 = 月 (month) + 其 (phonetic); 以 = functional character (by means of); 来 = simplified 來 (to come)

意味

長年にわたり、長期にわたって（今に至るまで）

A fixed adverbial phrase used at the start of a clause or sentence to signal long-standing conditions, habits, or problems. Common in formal writing, journalism, academic texts, and policy documents. Often introduces systemic issues (长期以来，这一问题未能得到有效解决 — This problem has long remained unresolved). The implied endpoint is the present moment.

例文

1. 长期以来，农村地区的基础教育资源与城市之间存在显著差距，均等化改革势在必行。
2. 长期以来她坚持每天写日记，这个习惯让她在晚年整理出了一部珍贵的个人回忆录。
3. 长期以来困扰该行业的知识产权保护问题，在新法规出台后终于有了明确的法律依据。

使い方ガイド

場面: journalism, policy, academic, social commentary, history

トーン: neutral

正しい言い方

• 长期以来，该地区的水资源短缺问题一直制约着当地经济的可持续发展。(For a long time, the shortage of water resources in this region has been constraining the sustainable development of the local economy.)
• 长期以来政府与企业在数据共享方面缺乏有效协调机制，导致重复建设现象严重。(For a long time there has been no effective coordination mechanism between the government and enterprises for data sharing, resulting in serious duplication of infrastructure.)

避ける言い方

• 长期以来我今天很累。(长期以来 refers to an ongoing state over a prolonged period and cannot introduce a one-time or current-day feeling — use 最近 or 今天 instead)

起源と歴史

长期 (long period) + 以来 (since, from a point up to now). Together: from a long time ago up to the present.

文化的背景

世代: All ages

社会的背景: Universal