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
Behave towards(ব্যবহার করা): The students behaved objectionably towards the Head teacher.
Hanker after (আকাঙ্ক্ষা/লোভ করা): He hankers after riches.
Indebted to (ঋণী থাকা): We are indebted to the great leaders of the country for their service.
Subsist on (বেঁচে থাকা): The poor subsist mainly on rice and pulses.
Welcome to (স্বাগত জানানো): You are welcome to our new office.
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Idioms
At one’s elbow (near at hand — হাতের কাছে – adv.) His private secretary is always at his elbow.
Backstairs influence (secret and illegal influence- গোপন এবং বে আইনী প্রভাব-n) He did not deseve the job, however, he got it by backstairs influence.
Irony of fate (ভাগ্যের পরিহাস): He could not succeed by irony of fate.
Lose heart (হতাশ হওয়া) — Do not lose heart in danger.
Steer clear of (avoid, দূরে থাকা)— You must steer clear of evil company.