そのような固定観念は捨てたほうがいいでしょう。の英語

We had better do away with such a fixed idea.

We must put away these prejudices.

You'd better leave off such a radical idea.

We must do away with such a custom.

We should do away with such a bad custom.

We have to do away with such a bad custom.

You should do away with such evil customs.

Such evil customs should be done away with.

I think these can be thrown away.

Such a bad custom should be done away with.

We have to do away with such a bad custom.

I think these kinds of ridiculous customs should be abolished.

Such a custom should be done away with.

That naive view has quickly been jettisoned.

Such a bad custom should be done away with.

You ought to do away with this practice.

We should do away with this regulation.

This idea must be given up.

This evil custom must be abolished.

We must do away with such bad customs.

You had better strike out this phrase.

We should do away with those bad customs.

You should have refused such an unfair proposal.

You should've rejected such an unfair proposal.

You must get rid of that bad habit.

You must shake yourself free from [You've got to free yourself of] your conventional ideas.

This hypothesis should be rejected.

That sort of thing should be done away with.

We must do away with these old rules.

The practice should be done away with.