Chang Xia: What's the old saying?

"Yi Zhou Shu Shi Xun Jie" says: "On a long summer day, it sounds like a song. On the fifth day, the earthworm came out. Another five days, Wang Guasheng. " That is to say, in this solar term, first of all, you can hear the chirping of grubs (that is, slugs) in the field (that is, frogs), then you can see earthworms digging in the soil, and then the vines of zucchini begin to climb and grow rapidly, which describes the phenological scene in early summer.