The "green-eyed monster" is jealousy.

“绿眼怪兽(green - eyed monster)”表示嫉妒。

youdao

Without him, we would never eat our flesh and blood out of house and home. We would have to say good riddance to the green-eyed monster and breaking the ice would be as dead as a doornail.

莎士比亚知道引人注目的话语和饼干一样有吸引力，没有他我们从不会吃肉喝血，不会倾家荡产，我们不得不说可喜的摆脱了绿眼怪，打破僵局将会是一命呜呼。

youdao

The minute someone’s pet bunny is threatened, however, take it as a sign that the green-eyed monster has gone too far.

当某人的宠物兔子都被威胁时，把它当作绿眼怪已经太出格了的信号吧。

youdao

A young man may suffer from the green-eyed monster if his girlfriend begins going out with someone else.

VOA: special.2010.05.23

Or,that green-eyed monster may affect your friend if you get a pay raise and she does not.

VOA: special.2010.05.23

The green-eyed monster is not a frightening creature from outer space.

VOA: special.2010.05.23