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191. Anthropologists have discovered that fear, happiness, sadness, and surprise are universally reflected in facial expressions.
人类学家已经发现，恐惧，快乐，悲伤和惊奇都会行之于色，这在全人类是共通的。
192. The greater the population there is in a locality, the greater the need there is for water, transportation, and disposal of refuse.
一个地方的人口越多，对其水。交通和垃圾处理的需求就会越大。
193. Long before children are able to speak or understand a language, they communicate through facial expressions and by making noises.
儿童在能说或能听懂语言之前，很久就会通过面部表情和K发出噪声来与人交流了。
194. Children with parents whose guidance is firm, consistent, and rational are inclined to possess high levels of self-confidence.
父母的教导如果坚定，理性，始终如一，孩子就有可能充满自信。
195. Television, the most pervasive and persuasive of modern technologies, marked by rapid change and growth, is moving into a new era, an era of extraordinary sophistication and versatility, which promises to reshape our lives and our world.
电视，这项从迅速变化和成长为标志的最普及和最有影响力的现代技术，正在步入一个新时代，一个极为成熟和多样化的时代，这将重塑我们的生活和世界。
