英语词汇USA rail pass怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	USA rail pass
释义	USA rail pass 简明释义美国火车通票双语例句 1 Is there any discount for the USA Rail pass? 美国铁路乘车证有折扣吗？
随便看	serum total protein serum total thyroxine serum total triiodothyronine serum transaminase serum transaminase activity determination serum transferrin serum transferrin saturation serum transfusion serum treatment serum triglyceride serum trypsin inhibitor Serum Tryptase serum tumor marker serum urea serum urea nitrogen serum urea nitrogen,SUN serum uric acid serum urticaria serum-virus vaccination serum virus vaccination serum warmer bath serum wassermann reaction serum Wassermann test serum water serum zinc

英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。