Is the tender blue spring a misnomer?

The tender blue spring not only shows the vitality of spring, but also expresses that the scope of swallow activity is blue sky. Spring is the first season of the four seasons, and it is the season when everything recovers, so "tender" means "new" and "blue" means blue sky.

Spring, also known as spring, is the first of the four seasons, which refers to the period from beginning of spring to long summer, including solar terms such as beginning of spring, rain, fright, vernal equinox, Qingming and Grain Rain. This is the season when everything comes back to life. Generally, March to May in the Gregorian calendar in the northern hemisphere is designated as spring, and late September to late February in the Gregorian calendar in the southern hemisphere is designated as spring. In modern meteorology in China, the average temperature in beginning of spring is above 10℃ for five consecutive days. In spring, the climate is warm and mild, and there is rain in most inland areas of China, where everything germinates and the climate is changeable.