Sfcs
abbr. safety flight control system 安全飞行控制系统
🗣️ 情景例句
Hi, Robbie.
嗨， Robbie。
The world is a ladder for some to go up and others to go down.
世界好似一把梯，有人上去有人下。
How did you decide that product was safe?
你怎样决定产品是安全的呢？