?保留符号
... 减速 RETARDATION 保留符号 RETENTION SIGN 上抽；拉回 RETIR? ...
消化道潴留征象
That is why I was proud to sign an Executive Order in 2010 that called on Federal agencies to increase recruitment, hiring, and retention of people with disabilities.
WHITEHOUSE: The White House
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。