punching waste, etc. must be removed at least once a day, preferably with a brush.
粗颗粒污物如绝缘性物质，冲压废弃物等至少每天必须移除一次，最好是用刷子刷掉。A fine, sharp projection, as a spine of a sea urchin or a crystal.
精细尖锐的突出物，如海胆的脊椎骨或水晶球Some buildings, like the old U. S. consulate, have been magnificently preserved or restored.
有些建筑物，如旧美国领事馆，已得到很好的保护或修缮。You can predict other common compounds like potassium chloride, used in very large doses as part of a lethal injection.
你还可以猜到其他一些很普通的化合物，如氯化钾，大剂量注射时是一种用于死刑犯的注射毒药。They wish to protect something they need, such as a concept they cherish, or to prevent something they fear, like confrontation.
他们为了保卫必需之物，如他们珍视的观念，或是为了躲避惧怕之物，如与人对质。Something, such as an idea or information, that is to be refined and made or incorporated into a finished effort.
将被提炼制造或组合成一个完成的作品的某物，如一个主意或信息。An arch or hoop, such as one of those used to support the top of a covered wagon .
弓形物或箍状物，如任何一种用于支撑的带篷运货车车顶的支撑箍。Their icons are shown with a decorator at the top left, as shown in Figure 28.
在它们所显示的图标的左上方有一个小的装饰物，如图28所示。Enteroviruses can be found in the respiratory secretions (e. g. , saliva, sputum, or nasal mucus) and stool of an infected person.
病人的呼吸道分泌物（如唾液、痰液和鼻涕）和粪便中含有肠病毒。