roller 

  1. 名詞
滾筒, 滾軸
滾動物, 滾柱
軋鋼工
滾動的人
輾壓東西的人
軋輥
墨輥, 塗料輥
捲軸, 捲髮筒
壓路機
繃帶捲

    
                        
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  2. 

    形容詞
roller-coaster:
大起大落的
變幻莫測的

    

    
                        
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例句

                

                    
    
                                                    
  1. 
                                My life was one big roller coaster.                            
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  2. 
                                It was a nonstop roller coaster ride.                            
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  3. 
                                Sounds like a emotional roller coaster.                            
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  4. 
                                Staple the shade material on the roller .                            
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  5. 
                                In roller skating, know the safety rules.                            
    6.