Random sampling : যদৃচ্ছা নমুনা সংগ্রহ;
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Appropriate Prepositions
Attacked with(আক্রান্ত): He is attacked with …
Attest to(প্রত্যয়ন করা): I like to attest to your ability.
Consist in (কোনো কিছু মধ্য বিদ্যমান থাকা): Happiness consists in contentment.
Deaf to, of, in (না শোনা, বধির হওয়া): The boy is deaf to his father’s advice. This man is deaf of/in one ear.
Feed on (খেয়ে বাঁচা): The cow feeds on grass.
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Idioms
All up with - (পুরোপুরি, হতাশ, সব আশা শেষ): If we can't, it's all up with the councillor.
Bad names (গালমন্দ—n) He called the man bad names.
Lose heart (হতাশ হওয়া) — Do not lose heart in danger.
Riding for a fall (বেপরোয়াভাবে কাজ করা- to act recklessly): He rides for a fall in the election.
Wild goose chase (useless pursuit, পন্ডশ্রম) —Do not waste time in wild goose chase.