Long-time : বহুদিনের; বহুকালের;
Related Words
long time  long-standing  long-time  longtime  lunch-time  See Words Also In
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Appropriate Prepositions
Deaf to, of, in (না শোনা, বধির হওয়া): The boy is deaf to his father’s advice. This man is deaf of/in one ear.
Desist from (বিরত থাকা): She desisted from making this.
Drop to (নিচে নামানো): Asif dropped his voice to a whisper.
Indulge in (আসক্ত): You should not indulge in social media.
Rely on (নির্ভর করা): We should not rely on a lazy man.
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Idioms
All along - (সব সময়): I was present in the meeting all along.
As ill-luck would have it (unfortunately- দুর্ভাগ্যবশত) A child was born to them but, as ill-luck would have it, it died when it was eight days old.
Bring to light (disclose-প্রকাশ করা) The police brought the secret to light.
Hard nut to crack (কঠিন সমস্যা): The problem of adult education is really hard nut to crack.
Ins and out (খুঁটিনাটি): I know ins and outs of this file.