Dull of Audio  /phrasal-verb/  বোধশক্তিহীন
EXAMPLE  He is dull of understanding.

Appropriate Preposition

  • Zealous for ( আগ্রহী ) He is zealous for improvement.
  • Involved in ( জড়িত ) He is involved in the plot.
  • Sympathy for ( সহানুভূতি ) I have no sympathy for him.
  • Count upon ( নির্ভর করা ) I count upon your help for this work.
  • Senior to ( বয়সে বড়, উচ্চপদস্থ ) He is senior to me by four years.
  • Envious of ( ঈর্ষান্বিত ) I am not envious of his riches.
  • Up and downs ( উন্থানপতন ) There are ups and downs in a man's life.
  • At one’s own sweet will ( খুশি মতো ) He still does it at his own sweet will.
  • bunch of fives ( মুষ্টি ; পাঁচ আঙ্গুলের মুঠো ) Rock can break anything with his bunch of fives.
  • be up and doing ( উঠে-পড়ে লাগা )
  • Slip of the pen ( লেখায় অসতর্কতাবশতঃ সামান্য ভুল ) This mistake is due to a slip of the pen.
  • At least ( অন্ততঃ ) At least one hundred boys will come to school today.