Black and white : সাদার উপরে কাল রঙে; লিখিত;
Related Words
black and blue  black and white  black andwhite  black smith  black-and-white  See Words Also In
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Appropriate Prepositions
Bark at(ঘেউ ঘেউ করা): The dog is barking at the strange woman.
Cast aside (ছুঁড়ে ফেলা): As soon as they become rich they cast aside their poor friends.
Concerned for (উদ্বিগ্ন): The parents are concerned for their growing children.
Work for (কারো জন্য কাজ করা): She works for a construction company.
Work with (কারো সাথে কাজ করা): They will be working with me on the new project.
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Idioms
At least (in the lowest estimate- কমপক্ষে) He is the owner of thirty lakh taka at least.
At one’s elbow (near at hand — হাতের কাছে – adv.) His private secretary is always at his elbow.
Learn by heart (মুখস্থ করা)— He learnt the poem by heart.
Out of order (বিকল): The elevator was out of order.
Up to (পর্যন্ত) - I have done the exercises up to page 40.