1、The pilot showed great advertence when he detected a small issue with the engine before takeoff. 飞行员在起飞前察觉到发动机的一个小问题，表现出了极高的警觉性。

2、It is important to have constant advertence when crossing the street to avoid accidents. 过马路时保持持续的警觉很重要，以避免事故发生。