Spirometer : ফুসফুসের ক্ষমতা-পরিমাপক যন্ত্র;
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Appropriate Prepositions
Abound in(প্রাচুর্যপূর্ণ হওয়া): Fish abounds in the pond.
Annoyed at(ব্যক্তি ছাড়া অন্যকিছুর প্রতি বিরক্ত): They were annoyed at his rough behavior.
Burst out a laughter(হাসিতে ফেটে পড়া) He bursts out a laughter.
Consent to(মত দেওয়া): The Prime Minister consented to the proposal.
Good for, at (ভাল): This man is good for nothing. He is good at English.
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Idioms
As ill-luck would have it (unfortunately- দুর্ভাগ্যবশত) A child was born to them but, as ill-luck would have it, it died when it was eight days old.
Bear in mind (remember— মনে রাখা —V): You should also bear in mind the additional costs of the mortgage.
Head and ears (সম্পূর্ণরূপে): He is over head and ears in debt.
Man of letters (পন্ডিত ব্যক্তি): You are truly a man of letters.
Turn down (refuse, প্রত্যাখান করা) —He turned down my proposal.