বায়ু-পাম্প: [Noun] Air-pump.
Related Words
বায়ু-পাম্প  বায়ুতরঙ্গ  See Words Also In
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Appropriate Prepositions
Call on(কারও সাথে দেখা করা): I called on him in his office.
Faith in (বিশ্বাস): I have no faith in him.
Hatred for (ঘৃণা): I have no hatred for anyone.
Look into (তদন্ত করা/অনুসন্ধান করা): I am looking into the matter.
Repentant for (অনুতপ্ত): Kamal should be repentant for his misbehavior.
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Idioms
At last (in the end – অবশেষে) He tried hard, and at last, succeeded in achieving his goal.
Breathe one’s last (decease, die- শেষ নিঃশেষ ত্যাগ করা, মরে যাওয়া) The man breathed his last in his native village.
Square meal (পেট ভরা আহার): He is too poor to have a square meal everyday.
Set something right (ঠিক করা)— He will set the machine right.
Upper hand (প্রাধান্য) - He got the upper hand in the selection.