জীব-রহস্য: [Noun] Secret of animal life; zoology; biology.
Related Words
জীব-রহস্য  জীবনচক্র  জীবনান্ত  জীবশূন্য  জীবানন্দ  See Words Also In
1.Google-Translator 2.Wikipedia 3.Wiktionary.org
Appropriate Prepositions
Arrive at(উপস্থিত হওয়া, পৌছানো): The train arrived at Dhaka station on time.
Consolidate for (শক্তিশালী করা): The four new companies consolidated for greater efficiency.
Detrimental to (অপকারী): Smoking is detrimental to health.
Infested with (অতিষ্ঠ): The room is infested with rats.
Repentance for (অনুতাপ): He has repentance for the past.
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Idioms
Art and part (অভিসন্ধি ও সম্পাদন) We have no art and part in his affairs.
At times (মাঝে মাঝে): He at times comes here.
Set something right (ঠিক করা)— He will set the machine right.
Tide over (বিপদ অতিক্রম করা-overcome ): The manager tided over the situation.
Upper hand (প্রাধান্য) - He got the upper hand in the selection.