Beat the air : বৃথা চেষ্টা করা; অনর্থক পরিশ্রম করা;
Related Words
bather  batter  battery  beat the air  beater  better  See Words Also In
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Appropriate Prepositions
Agree to(ব্যক্তি ছাড়া অন্যকিছুর সাথে একমত হওয়া): We cannot agree to your proposal.
Agree with(ব্যক্তির সাথে একমত হওয়া): I agree with you.
Concerned with(জড়িত): She was concerned with such things.
Repentance for (অনুতাপ): He has repentance for the past.
Sorry for (দুঃখিত): He is sorry for his misdeeds.
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Idioms
In a nutshell (সংক্ষেপে): Tell the whole story in a nutshell.
Kith and kin (নিকট আত্মীয়): He has no relation with his kith and kin.
Salt of the earth (গুরুত্বপূর্ণ ব্যক্তিবর্গ) —The salt of the earth is remembered always.
Well off (স্বচ্ছল) - Jim and Della were not well off.
Wild goose chase (useless pursuit, পন্ডশ্রম) —Do not waste time in wild goose chase.