Accident black spots的用法和样例：
- Accident black spot ahead! Drive with care!
- Drive with Care! Accident Black Spot!
- That road junction is a well-known accident black spot.
- In-depth investigations were carried out at 200 traffic accident black spots to identify common accident causes. Remedial accident prevention measures were recommended at 147 of these locations.
- That corner is a notorious accident black spot (= a lot of accidents happen there).