from top to bottom idiom
C2 彻底
If you search, paint, etc. a building from top to bottom, you search, paint, etc. all parts of it.
They cleaned the house from top to bottom. 他们彻底打扫了房子。
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。