Effective force : ত্বরণ-বল;
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Appropriate Prepositions
Absent from(অনুপস্থিত থাকা): I was absent from the class yesterday.
Dull of (বধির; কানে শুনে না): He is dull of hearing.
Infested with (অতিষ্ঠ): The room is infested with rats.
Penalty for, with (দণ্ড, জরিমানা): She has paid the penalty for the misuse of power with two years in prison.
Repentant for (অনুতপ্ত): Kamal should be repentant for his misbehavior.
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Idioms
Cut a sorry figure (খারাপ ফল করা): He cuts a sorry figure in the examination.
Cut to the quick (মর্মাহত হওয়া): I was cut to the quick by his birds.
Nip in the bud (অঙ্কুরে বিনষ্ট হওয়া): All his hopes were nipped in the bud.
Take into account (বিবেচনা করা): Your activities should be taken into account.
Turn down (refuse, প্রত্যাখান করা) —He turned down my proposal.