1.Perhaps, there will be a terrible struggling before the exuviae, unavoidable.
或许任何蜕变前都会有一阵挣扎,可。
2.Some mistakes are unavoidable.
有些错误是无法的。
3.Unfortunately, because studies on brand-extension strategy are still in exploration, I am a fumbler in many ideas in the paper, then so many oversights and mistakes are unavoidable.