Vfr
abbr. [航]目视飞行规则（visual flight rules）
🗣️ 情景例句
Maybe I can help. Tell me what it is, Susan.
也许我能帮忙。说给我听听 ，Susan。
She is singing in practice.
她在练习唱歌。
Do you know where it is?
你知道地方吗？