Cog-wheel : দন্তযুক্ত চক্র
Related Words
chessel  cog wheel  cog-wheel  cowl  See Words Also In
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Appropriate Prepositions
Consist of(গঠিত হওয়া): The committee consists of ten members.
Consolidate for (শক্তিশালী করা): The four new companies consolidated for greater efficiency.
Delighted at/with (আনন্দিত হওয়া): Sharmin was delighted at/with her husband’s promotion.
Inquire for (দেখা করতে চাওয়া): He inquires for the manager.
Satisfied with (সন্তুষ্ট): The authoress was highly satisfied with Jerry.
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Idioms
At the latest (খুব বেশি দেরী হলে) He will arrive here at 5 p. m. at the latest.
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.
Be all and end all (the ultimate out come- চরম পরিণতি—n) A loss of one million taka was the be all and end all of the projects.
In no time (শীঘ্র): He will finish the work in no time.
Read between the lines (understand the significance, অন্তনিহিত অর্থ বুঝা) Try to read between the lines of the letter.