First Lady

例句：

1. 1.The First Lady is expected to attend the gala tonight.
   第一夫人预计将出席今晚的晚会。
2. 2.She has been the First Lady since her husband became president.
   自从她丈夫成为总统以来，她一直是第一夫人。
3. 3.The First Lady's speech at the inauguration ceremony was widely praised.
   第一夫人在就职典礼上的演讲受到了广泛的赞扬。