Kay

例句：

1. 1. Kay is a very popular singer.
   凯是一位非常受欢迎的歌手。
2. 2. He gave his best performance at the concert.
   他在音乐会上表现最佳。
3. 3.She was very happy to receive such a gift from Kay.
   她很高兴从凯那里收到这样一份礼物。