retractable
🇺🇸
/rɪˈtræktəbl/
🇬🇧
/rɪˈtræktəbl/
adjective
R
able to be pushed or pulled back into its original position
The pen had a retractable tip, so it was easy to carry in a pocket without the risk of ink stains.
这支笔的笔尖是可伸缩的，因此很容易放在口袋里，不用担心墨水弄脏。
translation
可伸缩的