A noose is a circular loop at the end of a piece of rope or wire. A noose is tied with a knot that allows it to be tightened, and it is usually used to trap animals or hang people.
N-COUNT
束缚;圈套;陷阱
You can refer to something that traps people in a difficult situation as a noose around their neck.
例句
The rebels are tightening the noose around the capital...叛乱分子正在收紧对首都的包围。Too often women find their jobs turning into nooses around their neck.女性常常感到工作成了一种束缚。