Is the contradiction in the third paragraph of Bingxin bad after the rain? why

These two words are not contradictory, and they are used repeatedly to express the speaker's anxiety at that time.

After Rain is a poem that is very close to students' life, lively and fresh. This poem vividly depicts the children playing after the rain. The word terrible is used here, which is more vivid and shows the speaker's very anxious mood at that time. This article always writes that barefoot children in the square are "as happy as gods", and then focuses on the happiness of brothers and sisters playing after the rain.