Safety lock : রক্ষাছি্টকিনি;
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Appropriate Prepositions
Acceptable to(গ্রহণযোগ্য): Such behavior is just not acceptable in this school.
Aptitude for(স্বাভাবিক দক্ষতা, যোগ্যতা): He has no aptitude for public service.
Cast aside (ছুঁড়ে ফেলা): As soon as they become rich they cast aside their poor friends.
Informed of (অবহিত): I was not informed of your misfortune.
Point out (চিহ্নিত করা): Point out the mistakes from the book.
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Idioms
Acid test (অগ্নি পরীক্ষা): You must succeed in the acid test of the time you live in.45
In the wake of (ঠিক পরে): Police came in the wake of the accident.
Man of straw (অপদার্থ): We do not care for a man of straw like you.
Set free (মুক্ত করা): The prisoners were set free.
Speed money (ঘুষ; উৎকোচ): He hankers after speed money.