Luminescence : আলোক বিকিরণ;
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Appropriate Prepositions
Bar to(বাধা): Poverty is not a bar to happiness.
Beg for(অনুরোধ করা): Maria begged the Superintendent for a seat in the school hostel.
Pity for (করুণা, সমব্যথা): I feel pity for this helpless old man.
Remind of (স্মরণ করিয়ে দেওয়া): He reminded me of his request to lend him some money.
Run over (চাপা পড়া): The man was run over by a truck.
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Idioms
Bad names (গালমন্দ—n) He called the man bad names.
Crying need (জরুরী): Mass education is a crying need for India.
Lose heart (হতাশ হওয়া) — Do not lose heart in danger.
Pass sth/sb off as sth/sb (মিথ্যা পরিচয় দেয়া; Pretend – ভান করা): They were trying to pass off these shirts as genuine Armani.
Scapegoat (উদোর পিন্ডি বুধোর ঘাড়ে)—He was made scapegoat of the incident.