中高級進階單字及語法教學01 Advanced Vocabulary and Practice01 by David Pai PDF 下載 https://drive.google.com/file/d/1UHrmuvQ5ZzTfSeT3Szdcg5QBOH5HHWqi/view?usp=sharing Earthquakes are amongst the most destructive natural disasters They usually strike without any warning and result in a great loss of life and an enormous demolition of buildings Additionally, they may cause devastating landslides or create gigantic tidal waves which, in fact ,are collosal walls of water smashing into seashores with such force that they are capable of destroying coastal cities However, the vast majority of fatalities and serious injuries come about when buildings collapse Most frequently, the earthquake lasts 30 to 60 seconds, so usually there is no time to avert the mortal upshot once the shaking starts The savage forces of an earthquake trigger off a complex chain reaction in the building's structure when it is shaken lifted, pushed or pulled. A...