81. Although we do not know the long-term consequences of separation or deprivation , we do know that they can produce acute immediate distress .
雖然我們不知道分離和喪失親人的長期后果，但我們知道它們能立即引起劇烈的悲痛。
82. One can raedily trace the disappearance of dinosaurs to a major cataclysmic event .
人們很容易把恐龍消失的原因歸結(jié)為重大的災(zāi)難性事件。
83. The raesons for poverty are many , but for the most part center on illiteracy , the lack of opportunities and in some cases pure laziness .
貧困的原因很多，但主要是因?yàn)槿鄙俳逃?、缺少機(jī)會(huì)，有的情況下純粹是由于懶惰。
84. Child development depends on a number of factors , both physical and psychological . Correct parental nurturing from infancy through adolescence determines both the physical and mental profile of a mature individual .
兒童的發(fā)展取決于很多因素，包括生理的和心理的。從嬰兒期到青春期的正確的家長教育決定一個(gè)成熟的個(gè)人的體質(zhì)及智力的狀況。
85. Factors such as self-condidence and ambition , combined with determination and willpower , contribute to eventual success or failure .
自信、雄心，加上決心和毅力等因素是造成最終的成功或失敗的原因。
雖然我們不知道分離和喪失親人的長期后果，但我們知道它們能立即引起劇烈的悲痛。
82. One can raedily trace the disappearance of dinosaurs to a major cataclysmic event .
人們很容易把恐龍消失的原因歸結(jié)為重大的災(zāi)難性事件。
83. The raesons for poverty are many , but for the most part center on illiteracy , the lack of opportunities and in some cases pure laziness .
貧困的原因很多，但主要是因?yàn)槿鄙俳逃?、缺少機(jī)會(huì)，有的情況下純粹是由于懶惰。
84. Child development depends on a number of factors , both physical and psychological . Correct parental nurturing from infancy through adolescence determines both the physical and mental profile of a mature individual .
兒童的發(fā)展取決于很多因素，包括生理的和心理的。從嬰兒期到青春期的正確的家長教育決定一個(gè)成熟的個(gè)人的體質(zhì)及智力的狀況。
85. Factors such as self-condidence and ambition , combined with determination and willpower , contribute to eventual success or failure .
自信、雄心，加上決心和毅力等因素是造成最終的成功或失敗的原因。