例句 /

“I can't imagine why such an uncommon stone could not be used for the gable or the step?” grandmother asked.

“I can't imagine why such an uncommon stone could not be used for the gable or the step?” grandmother asked.

奶奶说,“真看不出!它那么不一般,却怎么连墙也砌不成,台阶也垒不成呢?”