The book is called no easy day , it is writen by a former seal under the penname Mark Oven , some 400000 copies are heading to book stores .
这本书叫做《没有容易的一天》，是以马克烤箱这个笔名署名的前海豹特遣队中的一员，已经有400000在书店出售。
no easy dayno easy dayno easy day