tip part

例句：

1. 1. He gave mea tip to help him find his way.
   他给了我一个小费，以帮助他找到路。
2. 2. The waiter tipped theserver generously for their excellent service.
   服务员因为服务出色而大方地给了侍者小费。
3. 3. She gave me a tipas a gesture of appreciation.
   她作为一个感谢的表示给了我一个小费。