老师用红线划出了我作文中的错误部分。

The teacher ___red-lined the mistakes in my essay.

公司将对任何违反安全规定的行为划出红线。

The company will ___redline any violations of safety regulations.

他在高速公路上把引擎转速拉到红线区，车子发出刺耳的声音。

He ___red-lined the engine on the highway, making the car screech loudly.