辞書 ポーランド語 - 英語
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przeprowadzenie badań 英語で:
1. 
to carry out tests
2. 
testing
It is still in the testing stage.
The letters STEP stand for the Society for Testing English Proficiency.
Bureaucrats are testing the waters over revising old regulations.
Testing Koko's IQ is not easy.
The salesman claimed the windshield was unbreakable, testing it with a punch that went straight through it.
to carry out the study 