Vf
abbr. 很好（very fine）；可变频率（variable frequency）；视频（vision frequency）
🗣️ 情景例句
I'm really concerned about them,
我真的为他们担心，
I phoned him last Saturday.
我上个星期六打电话给他。
and since most medical men in the Health Services are overworked and have little time for offering time-consuming and little-appreciated advice on such subjects as diet,
因为卫生部门的大多数医生都超负荷工作，所以没有多少时间提出一些既费时而又不受人欢迎的忠告，如注意饮食、