If you sweeten food or drink, you add sugar, honey, or another sweet substance to it.
例句
He liberally sweetened his coffee...他往咖啡里加了很多糖。The Australians fry their bananas and sweeten them with honey.澳大利亚人把香蕉炸了，然后再淋上蜂蜜吃。
VERB
改善;使更合心意;使更有诱惑力
If you sweeten something such as an offer or a business deal, you try to make someone want it more by improving it or by increasing the amount you are willing to pay.
例句
Kalon Group has sweetened its takeover offer for Manders...卡龙集团已经向曼德斯公司开出更为优厚的收购条件。She had been careful to sweeten the deal with a rather generous cash payment.她一直甚为审慎，想要通过支付大量现金促成这笔交易。