Harmonic series : বিপরীত শ্রেণী; বিপরীত শ্রেণি;
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Appropriate Prepositions
Adept in (দক্ষ): He is adept in playing football.
Appoint to(নিযুক্ত করা/হওয়া): Kibria has been appointed to the post of Headmaster.
Compete with(প্রতিযোগিতা করা): He does not pke to compete with
Concerned with(জড়িত): She was concerned with such things.
Dressed in (সজ্জিত, পরিহিত): The girl was dressed in silk.
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Idioms
Bad names (গালমন্দ—n) He called the man bad names.
For good (চিরদিনের জন্য): He left the house for good.
Hush money (ঘুষ): He offered a hush money to disclose the file.
Lame excuse (বাজে ওজর): The lame excuse will not do.
Scapegoat (উদোর পিন্ডি বুধোর ঘাড়ে)—He was made scapegoat of the incident.