Substantiates : প্রতিপন্ন করা; বাস্তবায়িত করা; মূর্ত করা; প্রমাণ করা; প্রতিপাদন করা;
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Appropriate Prepositions
Adequate for(পর্যাপ্ত): The loan given by the bank is not adequate for the farming project.
Astonished at(বিস্ময়-বিহবল হওয়া): We were astonished at his unexpected success.
Consistent with(সামঞ্জস্যপূর্ণ): Your action is not consistent with your word.
Entitled to (অধিকারী): He is entitled to a reward for honesty.
Refrain from (বিরত রাখা বা থাকা): I refrained him from smoking.
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Idioms
At last (in the end – অবশেষে) He tried hard, and at last, succeeded in achieving his goal.
At one’s elbow (near at hand — হাতের কাছে – adv.) His private secretary is always at his elbow.
Crying need (জরুরী): Mass education is a crying need for India.
Run high (বেড়ে যাওয়া) —The price of everything has run high.
Three R's (প্রাথমিক শিক্ষা)— He has not yet learnt the three R's.