At a time : এককালীন;
Related Words
at a time  at home  at that time  at what time  ata time  See Words Also In
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Appropriate Prepositions
Argue with, about(কথা কাটাকাটি করা): They always argue with me about tiny matter.
Count on/upon (নির্ভর, বিশ্বাস করা): Rahim count on (upon) my help.
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.
Deal in, with, out (ব্যবসা করা, ব্যবহার করা, বন্টন করা): The man deals in rice. He does not know how to deal with a customer. The Chairman dealt out the relief materials to the flood affected people.
Decide upon (সিদ্ধান্ত করা): We have not yet decided whether we are going to picnic.
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Idioms
Bird’s eye view - (ভাসা ভাসা দৃশ্য, হালকাভাবে দর্শন): We took a bird’s eye view of the scenery.
Bear (a) grudge (bear hostility to— শত্রুতা বা বিদ্বেষ পোষন করা—V) We should not bear (a) grudge against our brethren.
Run high (বেড়ে যাওয়া) —The price of everything has run high.
Slip of the pen (লেখায় অসতর্কতাবশত সামান্য ভুল): The mistake is due to a slip of the pen.
Show good manner (ভালো আচরণ প্রদর্শন ): You should show good manner in the company of young ladies.