1.   But suddenly the company finds itself heading down the treacherous road already traveled by several implant makers.

2.   It is just going to be a more treacherous road.

3.   Mines have been removed from the treacherous main road, the so-called highway of death.

4.   Nelson dismisses as mere stereotypes all the tales of baffling signs, corrupt police officials and roads too treacherous for rope climbers.

5.   Storms and treacherous roads could conspire to bog down troops.

6.   The notoriously treacherous roads may soon be made impassable by harsh winter weather.

7.   The widely held impression of treacherous roads is one proof of their success.

8.   Until recent years the most treacherous road in the country was the long diagonal stretch from the ports of Galicia to Madrid.

9.   But that is a treacherous road to walk.

10.   Drivers in aid convoys watch bombs in the distance as they negotiate treacherous roads.