硬面饼

hardtack

硬的英语翻译：

firm; forcedly; forcibly; good; hard; rigidity; stiff; strong; tough
【医】 pachy-; scirrho-

面的英语翻译：

face; surface; cover; directly; range; scale; side
【医】 face; facies; facio-; prosopo-; surface

饼的英语翻译：

cake
【医】 cake