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.
這支筆的筆尖是可收縮的，因此很容易放在口袋裡，不用擔心墨水弄髒。
translation
可伸縮的