sweetener
/ˈswi:tnə(r); `switnɚ/ n
1 [C, U] (piece of a) substance used to sweeten food or drink, esp as a substitute for sugar 使食物或饮料变甜的物质; （尤指）糖的代用品.
2 [C] (infml 口) attempt to persuade sb; bribe （对某人的）劝诱; 贿赂
The firm offered her a generous bonus as a sweetener. 公司提出给她一笔可观的花红藉以拉拢她.