英语四级写作佳句
Although we do not know the long-term consequences of separation or deprivation , we do know that they can produce acute immediate distress .
虽然我们不知道分离和丧失亲人的长期后果,但我们知道它们能立即引起剧烈的悲痛。
One can raedily trace the disappearance of dinosaurs to a major cataclysmic event .
人们很容易把恐龙消失的原因归结为重大的灾难性事件。 英语四级写作佳句