Infra-structure : অদৃশ্য কাঠামো; অদৃশ্য অবয়ব;
Related Words
infra-structure  infrastructure  See Words Also In
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Appropriate Prepositions
Careless of(অসতর্ক): Do not be careless of your health.
Control over(নিয়ন্ত্রণ): He has no control over his sons.
Desire for (কামনা): He has no desire for fame.
Greed for (লোভ): He has an indomitable greed for wealth.
Play on (বাজানো): They play on the piano.
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Idioms
At the top of (শীর্ষে): The boy shouted at the top of his voice.
Call in question (সন্দেহ করা): No one can call his honesty in question.
Crying need (জরুরী): Mass education is a crying need for India.
In a nutshell (সংক্ষেপে): Tell the whole story in a nutshell.
Wild goose chase (useless pursuit, পন্ডশ্রম) —Do not waste time in wild goose chase.