备战用其他话怎么说英语

To prepare for something using other means could be translated as "to get ready for something using alternate methods" or "to make preparations using alternative means." For example, you could say "I'm going to get ready for the test using alternate methods, pke reviewing my notes and practicing with sample questions." Or you could say "I'm making preparations for the trip using alternative means, such as packing early and arranging transportation."