used as a term of endearment or affectionate form of address 亲爱的(用作爱称) don't worry, sweetheart, I've got it all worked out. 别担心,亲爱的,我已经把它全解决了。 ■a person that one is in love with 恋人,情人 the pair were childhood sweethearts. 这一对是青梅竹马的恋人。 ■a particularly lovable or pleasing person or thing 特别可爱的人(或物) he is an absolute sweetheart. 他是个绝对可爱的人。 ■[as modifier](informal)denoting an arrangement reached privately by two sides, especially an employer and a trade union, in their own interests (非正式)私下达成的协议(尤指在工会和雇主之间为各自利益达成的) a sweetheart agreement. 私下达成的协议。