Gold standard : স্বর্ণমান;
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Appropriate Prepositions
Annoyed for(কোনো কারনে বিরক্ত হওয়া): The officer was annoyed with the clerk for being late.
Attend on/upon (সেবা করা): We should attend on/upon the ailing patient.
Averse to (বিমুখ): Rahim was averse of your various problems.
Repent on (নির্ভরশীল): He is repent on his parents.
Subsist on (বেঁচে থাকা): The poor subsist mainly on rice and pulses.
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Idioms
At home (comfortable— আরাম) He feels at home in Dhaka now.
Flesh and blood (রক্তমাংসের শরীর): She's my own flesh and blood; I can't believe she treated me that way!
In vogue (চালু): This custom is not in vogue at present.
Tooth and nail (strongly, প্রবলভাবে)-He fought tooth and nail against his enemy.
With might and main (যথা শক্তি দিয়ে) —He tried with might and main to help me.