The best treatment is antibiotics, preferably by injection.最佳的治疗方法是使用抗生素,能够注射就更好。Clean the car from the top, preferably with a hose and warm water.最好用软管和温水从顶部开始清洗汽车。
英英词典释义
Adverb
1. more readily or willingly;
"clean it well, preferably with warm water""I'd rather be in Philadelphia""I'd sooner die than give up"