ঘূর্ণপাম্প: [Noun] Rotary pump.
Related Words
ঘূর্ণপাম্প  ঘূর্ণপৃষ্ঠ  ঘূর্ণাক্ষ  ঘূর্ণাবর্ত  See Words Also In
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Appropriate Prepositions
Attest to(প্রত্যয়ন করা): I like to attest to your ability.
Decide upon (সিদ্ধান্ত করা): We have not yet decided whether we are going to picnic.
Guilty of (অপরাধী/দোষী): The convict was guilty of murder.
Indulge in (আসক্ত): You should not indulge in social media.
Monument to (স্মৃতিসৌধ): The monument to your right is a popular tourist attraction.
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Idioms
At one’s elbow (near at hand — হাতের কাছে – adv.) His private secretary is always at his elbow.
Bear (a) grudge (bear hostility to— শত্রুতা বা বিদ্বেষ পোষন করা—V) We should not bear (a) grudge against our brethren.
In black and white – (লিখিতভাবে) – Put forward your proposal in black and white.
Show good manner (ভালো আচরণ প্রদর্শন ): You should show good manner in the company of young ladies.
Well-to-do (সঙ্গতিপূর্ণ) - He was not born in a well-to-do family.