〜一方だ

import { getGrammarById } from 'kotowa';
getGrammarById('ippou-da');

{
  "id": "ippou-da",
  "pattern": "〜一方だ",
  "reading": "〜いっぽうだ",
  "romaji": "ippou da",
  "level": "N3",
  "meaning": "keep on -ing; more and more (change in one direction)",
  "formation": "Verb-dict + 一方だ",
  "examples": [
    {
      "ja": "この町の人口は、減る一方だ。",
      "furigana": "この{町|まち}の{人口|じんこう}は、{減|へ}る{一方|いっぽう}だ。",
      "en": "This town's population just keeps on shrinking."
    },
    {
      "ja": "物価は上がる一方なのに、給料は全然上がらない。",
      "furigana": "{物価|ぶっか}は{上|あ}がる{一方|いっぽう}なのに、{給料|きゅうりょう}は{全然|ぜんぜん}{上|あ}がらない。",
      "en": "Prices keep going up and up, yet my salary doesn't rise at all."
    },
    {
      "ja": "勉強をさぼっていたら、成績は下がる一方だった。",
      "furigana": "{勉強|べんきょう}をさぼっていたら、{成績|せいせき}は{下|さ}がる{一方|いっぽう}だった。",
      "en": "Since I kept skipping my studies, my grades just kept dropping."
    }
  ],
  "tags": [
    "change",
    "tendency"
  ],
  "notes": "Steady change in one direction, usually (not always) for the worse. Used with verbs of change such as 増える, 減る, 上がる, 悪くなる.",
  "zh": {
    "status": "reviewed",
    "source_hash": "fa97b0b232cfae23702c681a94926d7e37e7fa58c3f4c3872b919e9cafa12ccb",
    "meanings": [
      "不断",
      "越来越"
    ],
    "formation": "动词辞书形＋一方だ",
    "explanation": "表示某种变化持续朝一个方向发展。",
    "notes": "常用于増える、減る等变化动词，多用于不理想的变化。",
    "examples": [
      {
        "ja": "この町の人口は、減る一方だ。",
        "zh": "这个城镇的人口不断减少。"
      },
      {
        "ja": "物価は上がる一方なのに、給料は全然上がらない。",
        "zh": "物价不断上涨，工资却完全不涨。"
      },
      {
        "ja": "勉強をさぼっていたら、成績は下がる一方だった。",
        "zh": "因为一直偷懒不学习，成绩不断下降。"
      }
    ],
    "references": [
      "sources/grammar/n3.json#ippou-da",
      "Original Chinese authored and reviewed by Codex; no independent human review"
    ],
    "reviewer": "Codex",
    "review_method": "ai",
    "reviewed_at": "2026-10-28",
    "review_hash": "034fb07dfdabd85e2dee924628d7748363c0ee6d39429862e590e7e12e9619bb"
  }
}