Pre-groups
(pre-group 的第三人称 -s形式) 前群
🧩 词语组成解析
abbr. 炼油工程师（Petroleum Refining Engineer）
n. 群组, 组；用户组；团体（group的复数形式）
🗣️ 情景例句
He strikes the table angrily.
他气得大拍桌子。
Progress is the activity of today and the assurance of tomorrow.
进展即今日的活动和明日的保证。
but ever since he moved in, he has had trouble with cars and their owners.
但自从搬进去后，就和汽车及车主们发生了磨擦。