服装英语 帮忙翻译All tabs, inserts and flaps MUST BE CUT ON A GRADIE

服装英语 帮忙翻译
All tabs, inserts and flaps MUST BE CUT ON A GRADIENT. The back flap on this coat was not cut on a gradient and it does not look right. There is no point in having details on a novelty coat like this if they are not cut on a gradient. Please make sure the back flap is corrected on next sample