一碼事 [－码－]

Jyutping jat1 maa5 si6
Pinyin yī mǎ shì

Definitions (Wiktionary)
  1. noun
    one and the same thing
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    做计划是一码事，付诸实践是另一码事。
    做計劃是一碼事，付諸實踐是另一碼事。
    zuò jì huà shì yī mǎ shì ， fù zhū shí jiàn shì lìng yī mǎ shì 。
    • It's one thing to make plans, but quite another to carry them out.