1.春雨润青,symbolizesthearrivalofspringandthenourishmentitbringstotheenvironment.

2.燕归人欢,expressesthejoyofwelcomingtheswiftsbackastheyindicatetheseasonofsummer.

3.绿意盎然,emphasizesthevibrantgreenerythatthrivesduringtherainyseason.

4.春风拂面,signifiesthepleasantfeelofthespringbreezethatfillstheairwhenthewindowsareopen.

5.踏青赏梅,highlightsthetraditionalactivityofappreciatingplumblossomsandgoingforoutingsduringtheseason.

解释:上联描述了雨季时开窗倾听燕子鸣叫的景象,下联则提到了梅季时敞开窗户聆听春天的声音。
横批与上下联呼应,突出了春季和梅花两个主题,以及雨季和梅时带来的不同感受。