Quark : তত্ত্ব-অনুমিত একধরণের অতি ক্ষুদ্র মৌল কণা;
Related Words
quark  quarries  quirk  quirks  See Words Also In
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Appropriate Prepositions
Absorbed in(মগ্ন): I am absorbed in my study.
Apology for (কোনো কারনে ক্ষমা চাওয়া): Sajib should ask apology to her of his mistake.
Despair of (নিরাশ হওয়া): Do not despair of further improvement.
Guess at (অনুমান করা): It is difficult to guess at the age of women.
Look after (দেখাশুনা): He looks after me.
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Idioms
At every step (প্রতি পদে পদে): There are dangers at every step in our life and yet we want to live.
Fall flat (ফলপ্রসূ না হওয়া): This business is going to fall flat.
In lieu of (পরিবর্তে): Give me this pen in lieu of that.
Lame excuse (বাজে ওজর): The lame excuse will not do.
Part and parcel (অবিচ্ছেদ্য অংশ): Education is part and parcel to build a civilized nation.