The chairman promised to make the introduction short and sweet.
句中的 short and sweet 是什么意思?
short and sweet 是习语,意思是“紧凑的;简明扼要的”。
你的句子意思是:主席保证说只简短地作个介绍。
又如:
Time is limited, so please keep your remarks short and sweet. 时间有限,所以发言时请命明扼要。
They won't listen to a long lecture, so just keep it short and sweet. 他们不愿意听冗长的演讲,所以你要讲得简明有趣。