Red enters, ten years older than when we first saw him at a parole hearing.

瑞德进入，首次看他的假释听证会已是十年前了。

youdao

When the needle enters the red zone the engine is too hot.

当指针进入红色区域时，发动机就过热了。

《牛津词典》

"Stupid?" I say furiously as my mother enters. She's pale, too, and her eyes are red.

“愚蠢的？”我怒冲冲地说，这时我母亲进来了。她也脸色苍白，而且她的眼睛红红的。

youdao

In another bypass, they insert a wire into a silicon cover for an LED light that blinks red when the user enters an invalid code.

FORBES: Defcon Lockpickers Open Card-And-Code Government Locks In Seconds