Writing Balance Rule: The left radical (氵) takes up about one-third of the horizontal space, leaving the right component (冓) with the remaining two-thirds. Keep the right side balanced vertically and avoid letting the top overhang too much.
1. Meaning
ditch, gutter, trench, or ravine
groove or channel on a surfacegap, division, or barrier (e.g. 鸿沟 generational/ideological chasm)
We need to bridge the generational divide and communicate more with young people.
2. Sound
/[koʊ̯⁵⁵]/Tone: 55
溝
gōugou1
|
++
¯(55)
=gōu
Initial Consonant
g
Type: Unaspirated Velar
Sounds like: hard 'g' sound as in 'go'
Unaspirated
Airflow Tactile Test: No burst of air (sounds like 'c' in Vietnamese 'cá' or 'k' in English 'skate').
Tongue & Mouth Position: Back of the tongue raises to contact the soft palate (velum), releasing a clean stop without a burst of air.
Final Rhyme
ou
Vowel Group: -o vowel group
Sounds like: rhymes with 'oh' or the 'o' sound in 'go'
Mouth Shape Guide: Pronounce as standalone vowel 'oh'.
Common Learner Trap: Keep vowel quality steady across all 4 tone contours.
Tone
T1 (55)
5 → 5 (55)
1st Tone (High-Flat)
Tone Pitch & Cadence: Tone 1 stays flat and high at the top of your vocal range, similar to a sustained musical drone.
👂
Listening trap: Do not confuse Tone 1 (high level) with Tone 4 (falling), or confuse the back vowel '-ou' with '-ong' or '-ao'.
👋
Physical Tone Gesture: Tone 1 is a high, flat, sustained musical note. Imagine singing a high 'la' on a single pitch without letting your voice waver or drop.
3. Writing
Topology: Left-right · Strokes: 11 strokes
Writing Balance Rule: The left radical (氵) takes up about one-third of the horizontal space, leaving the right component (冓) with the remaining two-thirds. Keep the right side balanced vertically and avoid letting the top overhang too much.
4. Components
Radical氵 · Water Radical (water, liquids, rivers)
Semantic Clue (形旁):氵 (indicates that the ditch or gutter relates to water flow or liquid drainage)
Phonetic Clue (声旁):冓 (original sound: gòu)
Water (氵) running through a constructed structural channel or framework (冓) creates a ditch or gutter (沟).
氵 water / liquid semantic clue
冓 phonetic and structural clue
Phonetic Family (形声字家族)
9· Phonetic Root: 冓 (gòu)
5. History
Liushu category: Phono-semantic (形声)
Origin: Combined from the water signific (氵) to represent drainage and ditches, and (冓) which originally depicted frame structures or intersections, lending its sound.
Semantic Evolution: Originally referred specifically to irrigation ditches and waterways, later broadening to include any groove, trench, or metaphorical chasm (such as 'generation gap' 代沟).
Ancient agricultural societies placed immense importance on digging irrigation channels (沟渠) to manage floods and water crops.
6. Sinosphere
🇻🇳
Sino-Vietnamese
câu
Mandarin Tone 1 corresponds roughly to ngang tone in Vietnamese.
🇯🇵
Kanji (Japanese)
On: コウ (kō) / Kun: みぞ (mizo)
🇰🇷
Hanja (Korean)
구
Sound Shift Bridge: The initial 'g-' in Mandarin often corresponds to 'k-' or 'g-' in Sino-Xenic readings.
7. Memory
Vivid Mnemonic Story
Water (氵) flows through a structure of wooden frames (冓) right into an outdoor drainage ditch (沟).
Phonetic Family (形声字家族)
构
gòuto construct, structureReplaces the water radical with tree/wood (木), meaning wooden construction rather than water ditches.
购
gòuto purchase, buyReplaces the water radical with shell/money (贝), relating to commercial transactions.
鞴
bèiharness, saddleFeatures leather component, completely different meaning and sound shift.
Lookalikes & Traps (形近字)
构(gòu)
Look at the left side: 氵 (water) makes a ditch (沟), while 木 (wood) makes a structure/construction (构).
购(gòu)
Look at the left side: 氵 (water) is a ditch, while 贝 (money/value) is shopping/purchasing (购).
8. Mastery
Active Recall Challenge
下雨天走路要小心，彆踩進路邊的水[___]裡。
Clue: gōu
Common Learner Pitfall
Confusing the left radical with other similar components like 氵 vs 木 vs 贝, leading to mixing up 沟 (ditch), 构 (construct), and 购 (buy).
Memory Prompts
Recognition: When you see 沟, what does the water radical (氵) tell you about its core meaning?
Production: How do you write the Chinese character for 'ditch' or 'gutter' (gōu) with 11 strokes?
Real-World Video Context
Watch authentic native speakers pronounce and explain this word in real-world YouTube videos.
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溝gōuditch, gutter, groove
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