zwieback
	英 ['zwiːbæk; 'tsviːbæk]
美['zwibæk]
	
	    
	中文词源
	
	zwieback 烤干面包片来自biscuit对应的德语拼写形式。
 
		英文词源
	
	- zwieback (n.)
- 1894, from German Zweiback "biscuit," literally "twice-baked," from zwei "two, twice" + backen "to bake;" loan-translation of Italian biscotto (see biscuit).