同近义词辨析
unhappy, unfortunate, disastrous, unlucky
这组词都有“不幸的”的意思，其区别是：
unhappy多用于表示心理状态，指由于不满意或遇到一般性倒霉事而感到不愉快。
unfortunate语气较强，多指因命运不佳，意外不幸或事业失败、生活处于困境等而感到不幸。
unlucky指因缺少或一时无机遇，虽作了努力，但事不从心，感到失意。
双语例句
用作形容词(adj.)
- The new system has had a disastrous effect on productivity.
新制度已对生产力造成了灾难性的影响。 - This environmental effect of this new factory could be disastrous.
这家新工厂给自然环境带来的影响可能是灾难性的。 - Such a mistake would perhaps lead to disastrous consequences.
这样一种错误可能导致灾难性的后果。 - The economic position of the country is disastrous.
国家的经济形势非常糟糕。 - His original idea was good, but his execution of the scheme was disastrous.
他的设想很好，但实行起来却糟糕透顶。 - Her investment had disastrous consequences: she lost everything she owned.
她的投资结果很惨，血本无归。
权威例句
Biological Invasions: A Growing ThreatThe disastrous effects of the "total etch"technique in vital pulp capping in primates.Disastrous Numbers. (Book Reviews: Population, Resources, Environment. Issues in Human Ecology)Strategies for treating patients with advanced Parkinson's disease with disastrous fluctuations and dyskinesias.Sudden catatonic stupor with disastrous outcome.Copper and zinc: limiting values for liquid manure might be disastrousDisastrous eruptions of volcanoes in boundary surfaces and inside of lithospheric platesAnatomy of a disastrous success: the brushtail possum as an invasive speciesAcute Compartment Syndrome: Update on Diagnosis and Treatment.Vulnerability of bangladesh to climate change and sea level rise through tropical cyclones and storm surges
