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
When are you going camping again?
你什么时候再去露营？
Falling leaves
落叶
As far as I could see, it needed only a minor adjustment: a turn of a screw here, a little tightening up there, a drop of oil and it would be as good as new.
在我看来，只需稍加调整即可。这儿紧紧螺丝，那儿固定一下，再加几滴油，就会像新的一样了。