That expression is a millstone around someone's neck.

这个表达是指某人身上的沉重负担。

We could also say the debt is a millstone around their necks or a monkey on their backs.

我们也可以说学生贷款是他们的沉重负担。

By the middle of 1982, the character that had propelled Williams to superstar status was beginning to feel like a millstone around his neck.

1982年年中，让威廉姆斯成为超级明星的这一角色开始成为他的沉重负担。