Drainage system : জলনির্গমন-প্রণালী;
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Appropriate Prepositions
Apart from(ছাড়া, ব্যতীত, দূরে): They pave apart from each other.
Arrive at(উপস্থিত হওয়া, পৌছানো): The train arrived at Dhaka station on time.
Attentive to(মনোযোগী): He is attentive to his business.
Dwell upon (আলোচনা করা): They dwell long upon the matter.
Penalty for, with (দণ্ড, জরিমানা): She has paid the penalty for the misuse of power with two years in prison.
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Idioms
At death’s door (at the point of death- মৃত্যুর দ্বারে) The patient is now at death’s door.
Gain Ground (সুবিধা পাওয়া): The wise are said to gain the ground in the long run.
Hush money (ঘুষ): He offered a hush money to disclose the file.
Pack up a quarrel (ঝগড়া মিটানো)— He packed up their quarrel.
Without fail (অবশ্যই) - You must attend the meeting without fail.