Where is the coach's clutch? You should ask the sad and happy

Jia Xinghe traveled to a parallel world and found himself participating in a reality show, where he was randomly drawn to work as a driving school instructor.
Jia Xinghe: "Do you see the tree in front?"
Student: “I saw it!”
Jia Xinghe: “Bump into it!”
Student: “Ah?! This is not good.”
Jia Xinghe: "Why don't you step on the brakes?"
Student: “Where is the brake?”
Jia Xinghe: "The brakes are in the Western Regions, the grapes there are sweet!"
Student: "Coach, there is a rock in front of us, how do we get past it?"
Jia Xinghe: "Press F! Let's flash over there."
Student: "Coach, I think I'm on the line."
Jia Xinghe: "No, no, no, our line is too narrow. You should learn automatic transmission."
Student: “Why?”
Jia Xinghe: "You only have sorrow and joy, no separation or reunion."