这片田地石头太多，不适合种庄稼。

The field is too ___stony for growing crops.

他的表情冷硬如石，看不出任何情绪。

His ___stony face showed no emotion at all.

她面无表情地看着我，眼神冰冷。

She gave me a ___stony look without saying a word.