The unknown factors in the experiment could affect the results.
পরীক্ষায় অজ্ঞাত উপাদানগুলি ফলাফলে প্রভাব ফেলতে পারে।
COLLOCATIONS
unknown territory, unknown quantity, unknown source
USAGE NOTES
The term 'unknown' can refer to a variety of contexts, including people, objects, or situations that are not recognized.