其中一组，即所谓的对照组，将受到普通标准护理。
One group-the so-called control group-receives the usual standard of care.
我们的靴子与普通的战斗靴一样需要护理和保养。
Our boots require the same care and maintenance as normal combat boots.
该产品无须保养，用普通家用清洁剂及皮革护理剂就可保持历久常新。
Do not need to maintain, it can keep clear and new with the leather depurative.
该产品无须保养，用普通家用清洁剂及皮革护理剂就可保持历久常新。
Do not need to maintain, it can keep clear and new with the leather depurative.
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