字典 波兰语 - 英语
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twardy jak skała 用英语:
1. 
rock solid
Their marriage is rock solid.
英语 单词“twardy jak skała“（rock solid）出现在集合中：
upper intermidiate 2W restauracji
2. 
as hard as nails
You can’t upset Anna, she’s as hard as nails.
My supervisor is very kind to me but my boss is as hard as nails.
英语 单词“twardy jak skała“（as hard as nails）出现在集合中：
CPE Use of English 128 str.personality upper+inter
moduł 1. podręcznik
as solid as a rock 