Chinese Character: 叮 (Dīng - Sting; Remind)
Radical: 口 (Mouth radical)
Stroke Count: 5 (Number of strokes: 5)
Structure Analysis: 形声字，从口（发声器官），丁声（dīng，表音）。本义指蚊虫叮咬（如"叮咬"），现也指反复嘱咐（如"叮嘱"）(Phonetic-semantic character: "口" (mouth) + "丁" (phonetic). Originally meant "insect bite", now means "repeatedly remind".)
Pinyin: Dīng (First tone)
To be filled
The mosquito bit my arm. 蚊子叮了我的胳膊。
Mom reminded me to bring an umbrella. 妈妈叮嘱我要带伞。
Combine "口" (mouth) + "丁" (nail) → Sharp mouth like a nail's point. 组合“口”+“丁”→ 如钉子尖端般尖锐的嘴。