英语词汇retention period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	retention period
释义	retention period 保存期
随便看	ball test ball tester ball testing ball the jack ball turret ball up ball-up ballup ballups ballute ballutes ball valve ball valves ball with bally ballyhack ballyhoo ballyhooed ballyhooer ballyhooing ballyhooligan ballyhoos be back be back at square one be back to square one

英汉双解词典包含483723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。