sweetheart

情人、心上人、爱人

They were childhood sweethearts who married ten years later.

他们是青梅竹马的情人，十年后结为夫妻。

亲爱的、甜心用于称呼

Don't worry, sweetheart, I'll pick you up at six.

别担心，亲爱的，我六点去接你。

好人、大好人口语

Our neighbor is a real sweetheart; she watches our dog for free.

我们邻居人真好，免费帮我们顾狗。

私相授受的、台面下的多用于商业、政治

The company got a sweetheart deal from the city government.

那家公司从市政府那里拿到一份私相授受的合约。