Advantages sof direct sampling are that areas hardest to clean and which are reasonably accessible can be evaluated, leading to establishing a level of contamination or residue per given surface area.
直接取样的好处是可以评估难以清洗和相当容易接近的区域，使得可确定每个给出的表面区域的污染物或残留物的级别。
Shares sof BMW, Volkswagen and Daimler fell on Monday after his comments, but BMW said the company would stick to its plans to open a plant in Mexico in 2019.
他发表这番言论之后，宝马、大众和戴姆勒公司的股价本周一应声下挫，但宝马说，该公司将坚持原定计划，2019年在墨西哥开设一家工厂。
Stripes sof every hue in graphically bold and even artistic presentations are a standout. Don't forget a cool shoe.
每一种颜色的大胆条纹图案和艺术的表现让人眼前一亮，不要忘了鞋子也要酷炫。
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