"干净"的英文是"clean", "不干净"的英文是"dirty".
来源:
"Clean"和"dirty"都是源于拉丁文的形容词，其中"clean"来自拉丁文的"clārus"，意思是"明亮的"或"清澈的"，而"dirty"来自拉丁文的"tērreus"，意思是"土壤的"或"肮脏的".
英文例句及其中文翻译:
The kitchen is clean. (厨房很干净.)
This shirt is dirty. I need to wash it. (这件衬衫很脏. 我需要洗一洗.)
Can you please clean the floor? It's very dirty. (请问你能帮忙把地板打扫干净吗? 它很脏.)
I always try to keep my room clean. (我总是尽力让我的房间保持干净.)