gratuity [grəˈtu:əti]

例句:

• Today, he had received his small gratuity , as usual.
  这次他也得到了他的赏钱.
  
• The porter expects a gratuity.
  行李员想要小费。
  
• He is taking a gratuity from the Navy.
  他将领到海军补助的退役金。
  
• Gratuity is prohibited for a hotel concierge or maintenance worker.
  来自MSN
• So, the issue of their pension, of their gratuity, must be addressed, Lafenka said.
  来自VOA