1. The engineers had to superelevate the curves on the highway to improve safety.
（工程师们不得不提高公路弯道的超高，以提高安全性。）
2. In order to accommodate high-speed trains, the railway tracks were superelevated to reduce the risk of derailment.
（为了适应高速列车，铁路轨道被提高了超高，以减少出轨的风险。）