Long standing : দীর্ঘকালস্থায়ী;
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Appropriate Prepositions
Astonished at(বিস্ময়-বিহবল হওয়া): We were astonished at his unexpected success.
Behave towards(ব্যবহার করা): The students behaved objectionably towards the Head teacher.
Entrust with (কোনো কিছু দ্বারা কাউকে বিশ্বাস করে): He entrusted me with the thing.
Object to (আপত্তি করা): He objected to my proposal.
Quick at (চটপটে): A cashier must be quick at figures.
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Idioms
Crocodile tears (মায়াকান্না): He shed crocodile tears at our misery.
Slip of the tongue (বলায় সামান্য ভুল): This is a slip of the tongue; don’t pay much stress on it.
Speed money (ঘুষ; উৎকোচ): He hankers after speed money.
Take to one's heels (to run away, পালানো)- They took to their heels when they saw the policeman approaching.
To and fro (hither and thither, এদিক ওদিক)-The man is walking to and fro.