Gun-cotton : নাইট্রিক ও সালফিউরিক এ্যাসিডে তুলা ভিজাইয়া যে তীব্র বিস্ফোরক দ্রব্য তৈরি হয়
Related Words
gun cotton  gun-cotton  See Words Also In
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Appropriate Prepositions
Associate with, in(জড়িত হওয়া): This man was associated with crime.
Concerned with(জড়িত): She was concerned with such things.
Depend upon (নিশ্চিত থাকা, আস্থা রাখা): Sumi depended upon his word.
Eager for, about (একাগ্র): The students for this school are eager for knowledge. The teacher is eager about the success of his students.
Infested with (অতিষ্ঠ): The room is infested with rats.
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Idioms
At all (in the least degree – মোটেও না) There is no water at all in the pond.
Fish in a troubled water (এলোমেলো অবস্থার সুযোগ নেয়া): He made a lot of money by fishing in a troubled water.
Gain Ground (সুবিধা পাওয়া): The wise are said to gain the ground in the long run.
In no time (শীঘ্র): He will finish the work in no time.
Pass away (মারা যাওয়া)— He passed away last night.