The mother bee neatly folds in the inner layer of petals, smears a paper-thin mud layer and then folds the outer petals.
母蜂先把最里面那层花瓣整齐地弯曲折叠起来，抹一层纸张厚的泥巴，再然后把外边那层花瓣也叠起来。
After being delineated with thin lines, the petals were dyed with colors layer upon layer, which endowed them with varieties and a stereo impression.
花瓣用细笔勾描后多层晕染，富有层次变化和立体感。
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