High-octane : উচ্চশক্তিসম্পন্ন বিশেষ ধরনের জ্বালানি;
Related Words
heighten  heightened  high-octane  high-toned  See Words Also In
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Appropriate Prepositions
Astonished at(বিস্ময়-বিহবল হওয়া): We were astonished at his unexpected success.
Die by (দূর্ঘটনা বা অপঘাতে মরা/কোন কিছু দ্বারা মারা যাওয়া): He died by a road accident.
Dwell upon (আলোচনা করা): They dwell long upon the matter.
Good for, at (ভাল): This man is good for nothing. He is good at English.
Refrain from (বিরত রাখা বা থাকা): I refrained him from smoking.
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Idioms
At death’s door (at the point of death- মৃত্যুর দ্বারে) The patient is now at death’s door.
At every step (প্রতি পদে পদে): There are dangers at every step in our life and yet we want to live.
In black and white – (লিখিতভাবে) – Put forward your proposal in black and white.
Set free (মুক্ত করা): The prisoners were set free.
Ups and downs (উত্থান পতন): There are ups and downs in a man’s life.