be spotlessly clean 一尘不染
A Spotlessly Clean House 一尘不染房子
spotlessly clean as when new 洁白如新
clean spotlessly 极为清洁
The University of Tennessee's Walters Life Sciences building, is a model animal facility, spotlessly clean, careful in obtaining prior approval for experiments from an animal care committee.
田纳西大学的沃尔特斯生命科学大楼，一尘不染，是一座典型的动物实验楼，在获得动物委员会对实验的事先批准方面十分谨慎。
The apparatus is spotlessly clean.
仪器上一尘不染。
The house had huge, spotlessly clean rooms.
那房子里有着宽敞而且一尘不染的房间。
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