Key-stone : খিলানোর মধ্য প্রস্তর; মূলকেন্দ্র
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Appropriate Prepositions
Admit of(স্থান করা, সুযোগপ্রাপ্ত হওয়া): His offence admits of no explanation.
Admit to(ভর্তি করা): The boy was admitted to class Nine.
Congenial to(উপযোগী): The atmosphere is congenial to your health.
Grateful to (কৃতজ্ঞ): We should be grateful to our teachers.
Pleased with (সন্তুষ্ট): Shamim is pleased with all his employees.
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Idioms
Lose heart (হতাশ হওয়া) — Do not lose heart in danger.
Pave the way (সুপ্রসন্ন করা) – I am sure I can pave the way for your success.
Pass sth/sb off as sth/sb (মিথ্যা পরিচয় দেয়া; Pretend – ভান করা): They were trying to pass off these shirts as genuine Armani.
Riding for a fall (বেপরোয়াভাবে কাজ করা- to act recklessly): He rides for a fall in the election.
Short cut (সংক্ষিপ্ত পথ)— He comes by this shortcut.