In despair : হতাশাপূর্ণভাবে;
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Appropriate Prepositions
Angry for (কোন কাজে রাগান্বিত হওয়া): Rahim was angry with me for my having done this.
Behave towards(ব্যবহার করা): The students behaved objectionably towards the Head teacher.
Charge with(অভিযুক্ত করা): He is charged with killing.
Crave for(আকাঙ্ক্ষা করা): Everyone craves for care.
Regret for (দুঃখ করা): We regretted for his failure.
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Idioms
All along - (সব সময়): I was present in the meeting all along.
Fair and square (সৎ): The learned persons should be fair and square.
Lose heart (হতাশ হওয়া) — Do not lose heart in danger.
Maiden speech (প্রথম বক্তৃতা): His maiden speech fell flat on the audience.
Pros and cons (খুঁটিনাটি): You should consider the pros and cons of the system.