D-rings
(d-ring 的复数) abbr. capital-D-shaped ring 形状同大写字母D的环
🧩 词语组成解析
n. 吊环（ring的复数）
🗣️ 情景例句
What for?
为什么？
I know the boy whose father is an engineer.
我知道那个男孩的父亲是工程师。
It has helped me to serve others.
这份礼物帮助我为他人服务。