名詞 zwieback:

1. slice of sweet raised bread baked again until it is brown and hard and crisp
   同義詞：rusk, Brussels biscuit, twice-baked bread

zwie.back

n.（名詞）
A usually sweetened bread baked first as a loaf and later cut into slices and toasted.
烤干面包：通常先將甜面包烘制成塊，然后切成片烤

來源：
German
德語
zwie- [twice] from Middle High German zwi- from Old High German * see dwo-
zwie- [兩次，兩倍] 源自 中古高地德語 zwi- 源自 古高地德語 *參見 dwo-
backen [to bake] from Middle High German from Old High German bahhan, backan
backen [烘，烤] 源自 中古高地德語 源自 古高地德語 bahhan, backan