“五个一百”再扬帆，吹响正能量集结号

百度 第一、二代技术都没能达到‘不可复制’，第三代技术最终解决了这个问题。

Road signs in Dominica are standardized by the Dominican Traffic Control Devices Manual. Dominica drives on the left.

Regulatory signs

Priority signs

• 
  Stop
• 
  Give way
• 
  Manual traffic control (stop)
• 
  Manual traffic control (go)
• 
  Priority for oncoming vehicles

Mandatory signs

• 
  Turn left
• 
  Turn right
• 
  Ahead only
• 
  Turn left ahead
• 
  Turn right ahead
• 
  Keep left
• 
  Keep right
• 
  Pass either side
• 
  Mini-roundabout
• 
  Pedal cycles only
• 
  One-way traffic

Prohibitory signs

• 
  No right turn
• 
  No left turn
• 
  No U-turn
• 
  No entry
• 
  No vehicles
• 
  No motor vehicles
• 
  No motor vehicles except motorcycles
• 
  No motorcycles
• 
  No buses
• 
  No goods vehicles
• 
  No animal-drawn vehicles
• 
  No agricultural vehicles
• 
  No pedal cycles
• 
  No pedestrians
• 
  Weight limit
• 
  Axle weight limit
• 
  Width limit
• 
  Length limit
• 
  Height limit
• 
  No overtaking
• 
  No audible signals
• 
  No parking
• 
  No stopping

Warning signs

• 
  Stop or give way ahead
• 
  Crossroads
• 
  T-junction to left
• 
  T-junction to right
• 
  Side road to left
• 
  Side road to right
• 
  Staggered side road, first to left
• 
  Staggered side road, first to right
• 
  Merging traffic
• 
  Roundabout
• 
  Curve to left
• 
  Curve to right
• 
  Double curve, first to left
• 
  Double curve, first to right
• 
  Left curve marker
• 
  Right curve marker
• 
  Left curve marker
• 
  Right curve marker
• 
  T-junction marker
• 
  Road narrows
• 
  Road narrow on left
• 
  Road narrow on right
• 
  Dual carriageway ends
• 
  Two-way traffic
• 
  Two-way traffic crossing
• 
  Steep descent
• 
  Steep ascent
• 
  Height limit
• 
  Level crossing with barriers
• 
  Level crossing without barriers
• 
  Traffic signals ahead
• 
  Pedestrian crossing
• 
  Pedestrians
• 
  Children