One day before the plane took off, the stewardess approached Sam and asked him to fasten his seat belt.
某天飞机起飞前，空姐走到山姆面前要求他系好安全带。
2
When I sat on the plane, Boeing 737, I fastened my seat belt.
坐在波音737上后，我系上了安全带。
3
You put the seat belt signs on and advise the cabin crew, telling them whether they need to put away equipment or trolleys so that nothing flies around the plane.