periclinal structure

例句：

1. 1. Thecar was driving perilously closeto the edge of the cliff.
   汽车开得非常危险，几乎要撞上悬崖边了。
2. 2. The architect designed the buildingwith a perilous angle that wouldcause problems in the future.
   建筑师设计这座建筑时采用了一个危险的角，将来可能会遇到麻烦。
3. 3. The climber had tomake a perilous decision about whichroute to take.
   登山者不得不做出一个危险的决定，选择哪条路线。