英语词汇astm B221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	astm B221
释义	Examples: American Society for Testing and Materials (ASTM)— 测试和材料协会
随便看	it results from it results in conflict it results that it retailing it retains the ability to it reveals it reveals itself it revolution i tricked you i trick people i trick you into i tried i tried creating i tried different i tried different ways i tried everything possible I tried hard I tried hard i tried in vain i tried many times I tried my best i tried reading i tried skiing I tried so hard I tried so hard

英汉双解词典包含2273206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。

American Society for Testing and Materials (ASTM)—