Pertinacity : জেদ,দৃঢ়প্রতিজ্ঞা;
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Appropriate Prepositions
Adjacent to(সংলগ্ন): The Post Office is adjacent to my house.
Attacked with(আক্রান্ত): He is attacked with …
Break in (কথার মাঝে কথা বলা): As she was talking, he suddenly broke in, saying, ‘that’s a rat!’
By heart (মুখস্থ): Kamal learnt to poem by heart.
Infested with (অতিষ্ঠ): The room is infested with rats.
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Idioms
Cock and bull story (আষাঢ়ে গল্প): You must be ashamed of your cock and bull story.
End in smoke (ব্যর্থ হওয়া): All his plans ended in smoke.
In a fix (মুশকিলে পতিত হওয়া): The man is in a fix with his new hairstyle.
Pass sth/sb off as sth/sb (মিথ্যা পরিচয় দেয়া; Pretend – ভান করা): They were trying to pass off these shirts as genuine Armani.
Read between the lines (understand the significance, অন্তনিহিত অর্থ বুঝা) Try to read between the lines of the letter.