记忆方法
1、re- "back" + tract- + -able.
2、字面意思为：draw (something) back.
2、字面意思为：draw (something) back.
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英语词源
- retractable (adj.)
- "capable of being drawn in," 1769; see retract + -able. Meaning "capable of being disowned" is recorded from 1610s. Also sometimes spelled retractible.
权威例句
- 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。
- 2. a knife with a retractable blade
- 弹簧刀
- 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 ?
- 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.
- 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.