Wheels within wheels : অতি জটিল যন্ত্রবিন্যাস;
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Appropriate Prepositions
Abide with(সঙ্গে থাকা): If you would like to rest for a while, you can abide with me.
Consent to(মত দেওয়া): My father did not consent to the proposal of my sister’s marriage.
Drop to (নিচে নামানো): Asif dropped his voice to a whisper.
Dull of (বধির; কানে শুনে না): He is dull of hearing.
Identical with (একই ধরণের): You are identical with your sister.
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Idioms
All along - (সব সময়): I was present in the meeting all along.
At-fault (guilty-কিংকর্তব্যবিমূঢ়, অপরাধ, দোষ adj.) You are at fault.
Look into something (তদন্ত করা- investigate) - The manager looked into the matter.
Pass away (মারা যাওয়া)— He passed away last night.
With might and main (যথা শক্তি দিয়ে) —He tried with might and main to help me.