这样的衣服对大多数人来说是负担不起的。

Such clothes are ___unaffordable for most people.

每节课5英镑对学生来说显然是负担不起的。

£5 per session is obviously ___unaffordable for students.

这辆豪华车对于一个普通家庭来说是负担不起的。

The luxury car is ___unaffordable for an average family.