?环境清扫
... envelopment 包围 environmental cleanup 环境清扫 environmental services 环境勤务 ...
?环
... envelopment 包围 environmental cleanup 环 境清扫 environmental services 环 ...
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。