sudden 

  1. 形容詞
突然的, 忽然的
(事)意外的
意想不到的
突兀的
急劇的, 驟然的
迅速的, 快速的
快的

    同義字詞
abrupt,unanticipated,unexpected,unforeseen,unlooked-for

  2. 名詞
限定單數可數名詞a sudden:
突然發生的事

    
                        
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  3. 

    副詞
all of a sudden:
突然地
出乎意料地

    

    
                        
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例句

                

                    
    
                                                    
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                                Never impose a sudden big increase in load.                            
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                                They're used to sudden outbreaks of violence.                            
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                                Everyone wore them all of a sudden , like that.                            
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                                Typically the onset of gout is sudden and intense.                            
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                                Equal scores are decided by sudden death shoot outs.                            
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