1, which means everything. In Xue Jinxing's synchronous composition, the annotations are completely explained, the background of the characters is completely introduced, and other complete solutions are incomplete, so there are some omissions. Xue Jinxing's synchronized composition is easy to understand.

2, the price is cheap. The prices of other packages are in 50 yuan, 40 yuan and Xue Jinxing, and the prices of synchronized composition packages are in 20 yuan -30 yuan. Synchronous synthesis in Xue Jinxing is very cheap.