Double-jointed
a. 双关节的, 可前后自由活动的
📖 牛津释义
double-jointed
adj [usu pred 通常作表语]
having very flexible joints that allow the fingers, arms or legs to bend backwards as well as forwards （手指、 臂或腿）有双关节（可前後活动）.
🧩 词语组成解析
double
['dʌbl]
adj. 双的;两倍的;两面派的;双人用的;
vt. 使加倍;把…对折;重复;
vi. 加倍，加倍努力;快步走;
adv. 两倍地;双重地;
n. 两倍;双精度型;
doub二，双+le反复 → 反复两倍 → 翻倍
a. 有接缝的, 有节的, 有接头的
🗣️ 情景例句
Here's $ 100 for my ticket.
这是我的100美元。
Do not to others what you do not wish them to do to you.
己所不欲，勿施于人。
There is so much variety that you never have to make do with second best.
物品种繁多，从来不必用二等品来凑合。