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Jyutping waan4 bei2
Pinyin huán bǐ

Definitions (Wiktionary)
  1. noun
    the ratio of the figure for one period (month, quarter, etc.) to that of the immediately preceding period
Definitions (兩岸三地生活差異詞語彙編—Two Shores Three Places)
  1. 經濟:臺
    與上月同期比較
  2. 經濟:陸
    環比

環比 [环-]

Jyutping
Pinyin huán bǐ

Definitions (CC-CEDICT)
  1. (statistics) period on period (i.e. "month on month" or "quarter on quarter" etc, depending on the context)