disaster /diˈzɑ:stə/ n. ［c］ & ［u］灾难： bring political disaster 招致政治灾难； suffer disaster from earthquake (flood, fire) 遭受地震灾害(水灾，火灾)；an air disaster 飞机失事，空难; a disaster upon sb. 降到某人头上的灾祸［考句］ The 1986 Challenger space shuttle disaster was caused by unusually low temperature immediately before the launch. 1986年“挑战者”飞船的灾难是因为发射前异常的低温。
disastrous /diˈzɑ:strəs/ adj. 1.灾难性的，造成灾害的：a disastrous flood 洪水；a disastrous mistake 弥天大错；suffer disastrous defeat 惨败 2.极坏的，很糟的：a disastrous result 很糟的结果
