verb🔗Share保护， 守护， 防护. To keep safe; to defend; to guard; to prevent harm coming to."Condoms are designed to protect against sexually-transmitted diseases."安全套的设计是为了保护人们免受性传播疾病的侵害。actionenvironmentlawmilitarypolicewarChat with AIVocabulary GamePractice Reading
verb🔗Share预订候补机位，超额预订。 (travel) To book a passenger on a later flight if there is a chance they will not be able to board their earlier reserved flight."The airline agent is protecting passengers by booking them on a later flight in case the first flight is overbooked. "航空公司的工作人员正在给乘客预订候补机位，以防第一趟航班超额预订，从而保障乘客的行程。businessserviceChat with AIVocabulary GamePractice Reading
