External angle : বহিঃস্থ কোণ;
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Appropriate Prepositions
Abide with(সঙ্গে থাকা): If you would like to rest for a while, you can abide with me.
Abstain from(বিরত থাকা): I am trying to abstain from sweets for my new diet.
Affection for(স্নেহ): She has a great affection for the child.
Apply for(কারো কাছে আবেদন করা): Sumi applied to the Principal for free studentship.
Enter into (কোনো কিছুতে আবদ্ধ হওয়া): pma entered into a new agreement.
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Idioms
At all (in the least degree – মোটেও না) There is no water at all in the pond.
At one’s elbow (near at hand — হাতের কাছে – adv.) His private secretary is always at his elbow.
Bird’s eye view - (ভাসা ভাসা দৃশ্য, হালকাভাবে দর্শন): We took a bird’s eye view of the scenery.
Silver living (hope- আশা বা ভালো দিক): Every cloud has a silver lining.
Ups and downs (উত্থান পতন): There are ups and downs in a man’s life.