Prefs
(pref 的复数) abbr. 优先（preference）；序幕（preface）；字首（prefix）
🗣️ 情景例句
I like to study in the library because it's so quiet.
我喜欢在图书馆学习因为那儿很安静。
There is no going heaven in a sedan.
坐轿上天堂，从来无此事。
In fact a basic amount of movement occurs during sleep which is specifically concerned with preventing muscle inactivity.
事实上，睡眠状态下仍有着基本的活动量，以防止肌肉活动停止。