nodum

例句：

1. 1. The waiter nodded to thehostess as she walked in.
   服务员向迎宾小姐点头。
2. 2. He nodded his headin agreement.
   他点头表示同意。
3. 3. She noddedher head in acknowledgment of the information.
   她点头表示对信息的认可。