max       
 adjective uk/mæks/ us/mæks/
 (常用于数额之后)最多的,最高的
informal for maximum , often used after an amount
  "How much will the trip cost?" "£40 max." “这趟旅行要花多少钱?”“最多40英镑。” 
 max      
 noun uk/mæks/ us/mæks/
to the maxUS informal 最大程度地,尽可能地
as much as possible
  These athletes push their bodies to the max. 这些运动员的体能已消耗到了极限。