2019新外研版高中英语必修三 Unit 3 The world of science :Part...
④The speaker waited until the laughter had died down. ⑤At the same time lack of sleep and food situation,you will die from lack of sleep. 短语记牢 die away 逐渐减弱;逐渐消失 die of 死于 die off 相继死去 die out 灭绝;消失 die down 减弱,平息 1.More than one generation...