字典 波兰语 - 美国英语
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badania naukowe ?:
1. 
research
Conner spent eight years researching the history of the Romans.
My stepmother is doing scientific research into heart disease.
美国英语 单词“badania naukowe“（research）出现在集合中：
UNIT 3 Cutting Edge Pre-Intermediate Student's Bookkorepetycje x8
1 dział podstawa
