They look spotlessly clean throughout their lives.
出自-2011年12月聽力原文
柯林斯高階英漢雙解學習詞典釋義
ADJ-GRADED
極其干凈的;一塵不染的
Something that is spotless is completely clean.
例句
Each morning cleaners make sure everything is spotless...每天早晨,清潔工們會把一切都打掃得干干凈凈。Even in the most spotless homes, carpets need regular cleaning to keep them looking good.即便是在最干凈的房子里,地毯也需要定期清潔以保持美觀。