Where did t.a. come from? Usually say: July, where is T.A.?
T.A. means that August is not over yet. T.A. did not appear directly in The Book of Songs. It is estimated that it has just been added, which means that August is not over yet.
The word "July filariasis" comes from the "national style" in the Book of Songs: "July filariasis, September clothes." The "fire" here refers to the "heart", that is, the "fire" star.