Mary and Tom watch TV third times a week.
问题描述:
Mary and Tom watch TV third times a week.
答
应该是Mary and Tom watch TV thiree times a week.
是three而不是third.
基数词和序数词是不同的 是不能互换的
改正后意思是:玛丽和汤姆看电视的频率为一周三次.