Angle of reflection : প্রতিফলন কোণ;
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Appropriate Prepositions
Adjacent to (সন্নিহিত): His house was adjacent to the bridge.
Associate with, in(জড়িত হওয়া): This man was associated with crime.
Congratulate on(অভিনন্দন জানানো): They congratulated me on my brilliant success.
Crave for(আকাঙ্ক্ষা করা): Everyone craves for care.
Faith in (বিশ্বাস): I have no faith in him.
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Idioms
At ease (in peace or pleasure – শান্তিতে বা আরামে) A man who has enemies can not live at ease.
Cut a sorry figure (খারাপ ফল করা): He cuts a sorry figure in the examination.
Gift of the gab (বাকপটুতা): An advocate should have the gift of the gab.
Let loose (বল্গাহীনভাবে ছেড়ে দেয়া): He let his horse loose in the field.
Read between the lines (understand the significance, অন্তনিহিত অর্থ বুঝা) Try to read between the lines of the letter.