Heliograph : সূর্যকিরণ সাহায্যে সংকেত পাঠাইবার যন্ত্র
Related Words
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Appropriate Prepositions
Adjacent to (সন্নিহিত): His house was adjacent to the bridge.
Attend to(মনোযোগ দেওয়া): Please attend to my advice.
Congratulate on(অভিনন্দন জানানো): They congratulated me on my brilliant success.
Grateful to (কৃতজ্ঞ): We should be grateful to our teachers.
Noted for (বিখ্যাত): She is noted for dancing.
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Idioms
At dead of night (গভীর রাতে) The police caught the thief at dead of night.
Dead against (তীব্র বিরোধী - strongly opposed to): I am dead against corruption.
From hand to mouth (দিন আনে দিন খায়): The poor man live from hand to mouth.
Pros and cons (খুঁটিনাটি): You should consider the pros and cons of the system.
To the letter (in all details, অক্ষরে অক্ষরে) —Follow my advice to the letter.