Chinese Character: 底 (Dǐ - Bottom; Base)
Radical: 广 (House radical)
Stroke Count: 8 (Number of strokes: 8)
Structure Analysis: 形声字，从广（房屋），氐声（dǐ，表音）。本义指物体的最下部（如“底部”），引申为基础（如“底稿”）。(Phonetic-semantic character: "广" (house) + "氐" (phonetic). Originally meant "bottom part", extended to "foundation".)
Pinyin: Dǐ (Third tone)
The bottom of the box is damaged. 箱子的底部损坏了。
We need to protect the seabed ecosystem. 我们需要保护海底生态系统。
Combine "广" (house) + "氐" (base) → Foundation of a building. 组合“广”+“氐”→ 建筑物的基础部分。