freeCodeCamp/curriculum/challenges/english/blocks/zh-a1-learn-nasal-finals/607299f24a43744eca51b14a.md

id, title, challengeType, dashedName, lang, inputType

id	title	challengeType	dashedName	lang	inputType
607299f24a43744eca51b14a	Task 25	22	task-25	zh-CN	pinyin-to-hanzi

--description--

In this lesson, you'll practice using uen and ün to form a word.

When you need to check something again and again at regular intervals instead of just once, this word is often used in that situation.

--instructions--

Listen to the audio and complete the word below. The correct syllables will be converted to Chinese characters.

--fillInTheBlank--

--sentence--

BLANK

--blanks--

轮询 (lún xún)

--feedback--

This word combines the syllables lún and xún.

--explanation--

The first syllable combines the initial l with the final uen (written as un), and uses the second tone, which rises from mid to high. The second syllable combines the initial x with the final ün (written as xun in Pinyin), and also uses the second tone.

轮询 (lún xún) refers to a method where a system periodically checks for new data or status changes instead of relying on event-driven notifications.

--scene--

{
  "setup": {
    "background": "cafe.png",
    "characters": [
      {
        "character": "Li Hong",
        "position": {
          "x": 50,
          "y": 15,
          "z": 1.4
        },
        "opacity": 0
      }
    ],
    "audio": {
      "filename": "ZH_A1_pinyin_nasal_finals.mp3",
      "startTime": 1,
      "startTimestamp": 370.97,
      "finishTimestamp": 373.41
    }
  },
  "commands": [
    {
      "character": "Li Hong",
      "opacity": 1,
      "startTime": 0
    },
    {
      "character": "Li Hong",
      "startTime": 1,
      "finishTime": 2.94,
      "dialogue": {
        "text": "轮询 (lún xún)",
        "align": "center"
      }
    },
    {
      "character": "Li Hong",
      "opacity": 0,
      "startTime": 3.44
    }
  ]
}