On the spot : অকুস্থলেই; সঙ্গে সঙ্গে; হাতে-হাতে; ততক্ষণাত; সতর্কভাবে; প্রস্তুতভাবে; সঙ্কটাপন্ন;
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Appropriate Prepositions
Abide in(বাস করা): I abide in Dhaka with my family.
Defend against (রক্ষা করা): We will defend our country against all enemies.
Dull of (বধির; কানে শুনে না): He is dull of hearing.
Indifferent to (উদাসীন): Everybody is indifferent to my problem.
Look up (ডিকশনারি থেকে শব্দার্থ খোঁজা): He is looking up a new word meaning from dictionary.
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Idioms
Get rid of (মুক্তি পাওয়া): Try to get rid of the rogue.
In one’s teens (তের থেকে উনিশ বছর বয়সের মাঝে): She is yet in her teens.
Let loose (বল্গাহীনভাবে ছেড়ে দেয়া): He let his horse loose in the field.
Take to heart (মর্মাহত হওয়া)- He really took it to heart when I asked him to reconsider.
Up and doing (উদ্যোগী): Be up and doing and then you will succeed in your life.