a unit of length in ancient China, approximately 3.33 centimeters (中文含义：寸，古代长度单位)
记忆技巧
Visual Association
Imagine a small ruler marked with 'cun' instead of centimeters. Picture yourself measuring tiny objects like buttons or coins with this 'cun ruler' to remember its meaning as a unit of length.
Rhyme & Sentence
Think of the rhyme: 'A cun a day keeps the inches away.' It humorously suggests using 'cun' instead of inches, reinforcing its meaning as a measurement unit.
Cultural Connection
Link 'cun' to the Chinese idiom '得寸进尺' (greedy for more after gaining a little). Visualize someone demanding 'one more cun' to recall the word's cultural context.
例句
The tailor measured the fabric in cuns, as was customary in ancient China. (裁缝以寸为单位量布料，这是中国古代的习俗。)