Contamination is a continual worry even in the cleanest equipment and the most favourable experimental situation . 甚至在有最清洁的设备和最好的实验条件时，沾染也是一个始终存在的问题。
Not with standing her strict attention to all domestic affairs, she always appeared the clean well-dressed mistress of the house . 尽管她照料家务一丝不苟，然而看上去却总是一位穿得齐齐整整的女主人。
He is forever talking about the friendly people , the clean atmosphere , the closeness to nature and the gentle pace of living . 他总是谈到那些友善的人们，洁净的空气，与大自然的接近和安详的生活步调。
Although members of the airline mechanics union, the cleaners had chosen an independent channel outside the traditional grievance machinery . 虽然清洁工是航空机械工会的成员，他们却在这个传统的鸣不平机构外选择了一个独立的渠道。
All that cooking and the shopping and the cleaning 没完没了的下厨买菜和洗衣服
Research on the cleaning procedure of antique silk - wovens 元代丝织品清洗的研究
Did the cleaning fluid work （ on that stain ） 这种洗涤剂（对那块污斑）管用吗？
The traditional culture and the clean government building 我国传统文化与廉政建设
You might be takin ' me to the cleaners for all i know 你可能会让我一贫如洗的
I am going to pick up my coat from the cleaner ' s 我打算去洗衣店去取我的大衣。
