One group received the normal hard diet foe rats; the other group received the powder soft diet.

一组喂以标准的硬食，另一组以粉末状软食喂养。

youdao

Because the normal word order is reversed in passive sentences, they are sometimes hard to follow.

由于正常语序在被动句中被颠倒过来了，所以有时很难理解。

《柯林斯英汉双解大词典》

It's hard when you feel like you don't look "normal" or "perfect".

当你觉得自己看起来不“正常”或不“完美”时，就很难了。

youdao

Life seems to be back to normal. However,in the small coastal communities hit hard by the tsunami, signs of devastation and loss are everywhere.

VOA: standard.2009.10.05

Panico says in most of the hard hit communities, life is largely back to normal.

VOA: standard.2009.12.26

He said he wanted them to realise that himself and other athletes were "normal people training hard".

BBC: Etienne Stott returns to Viking Kayak Club in Bedford

Mr. SHA: Normal life is hard in Pakistan, but I think if we play our role, everybody when he play his role, I think we can find the solution.

NPR: Pakistan Warily Watches Obama Policies

It requires an accurate inflation forecast, which is hard enough in normal times.

ECONOMIST: European Central Bank