Hygienist : স্বাস্থ্যবিজ্ঞান; স্বাস্থ্যবিজ্ঞানী;
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Appropriate Prepositions
Adjacent to (সন্নিহিত): His house was adjacent to the bridge.
Answerable to (কারো কাছে জবাবদিহিতা করা): He is not answerable to anybody for his mistake.
Hinge on/upon (নির্ভর করা): The whole matter hinges upon this clue.
Quick at (চটপটে): A cashier must be quick at figures.
Repentant for (অনুতপ্ত): Kamal should be repentant for his misbehavior.
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Idioms
At a round rate (at the fixed price – নির্ধারিত মূল্যে) Things are selling in the shop at a round rate.
Art and part (অভিসন্ধি ও সম্পাদন) We have no art and part in his affairs.
Bring to light (disclose-প্রকাশ করা) The police brought the secret to light.
Run a risk (ঝুকি নেয়া) — He ran a risk to save his life.
Seventh heaven – (মহাখুশী) – I was in the seventh heaven when I heard the news of my BCS final result.