retractable
                                        英 [rɪ'træktəbl]
美 [rɪ'træktəbl]
                                        
                                        
                                                                                
                 
                                
                             
                        
            1、re- "back" + tract- + -able.
2、字面意思为:draw (something) back.
                                                            
            - retractable (adj.)
 - "capable of being drawn in," 1769; see retract + -able. Meaning "capable of being disowned" is recorded from 1610s. Also sometimes spelled retractible.
 
 
                                    
            
                 - 1. A 20,000-seat arena with a retractable roof is planned. 
  - 一个有两万个座位、带可开合顶棚的体育场正在规划中。
  来自柯林斯例句
 
- 2. a knife with a retractable blade 
  - 弹簧刀
  来自《权威词典》
 
- 3. So, any thoughts of what you want for the retractable bed kid? 
  - 那么想为那个睡折叠床的小子做 什么 ?
  来自电影对白
 
- 4. Today already have a retractable line, MP 3 headsets , optical mice, etc. products. 
  - 今天已经拥有伸缩线, MP3耳机, 光电鼠标, 等等产品.
  来自互联网
 
- 5. Product Description: [ Material ] strap is a retractable - type rubber material. 
  - 产品介绍: [ 材质 ] 表带是可伸缩型橡胶材料.
  来自互联网