Vfr
abbr. [航]目视飞行规则（visual flight rules）
🗣️ 情景例句
Really? I'm not much of an outdoor person.
真的？我不是很喜欢户外活动的人。
Rear sons for help in old age; and store up grains against famine.
养儿防老。
How are you today?
你今天好吗？