Potassium : রাসায়নিক ক্ষারজ শ্বেতবর্ণ ধাতুবিশেষ;
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Appropriate Prepositions
Die from (কোন কিছু জন্য মারা যাওয়া): The poor person died from hunger.
Entitled to (অধিকারী): He is entitled to a reward for honesty.
Hostile to (বিরোধী বা বিরূপ ভাবাপন্ন): Nobody is hostile to you.
Popte in, to (মার্জিত): We must be popte in our dealings. One should be popte to
Rebel against (বিদ্রোহ করা): The soldiers rebelled against the king.
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Idioms
In a nutshell (সংক্ষেপে): Tell the whole story in a nutshell.
Lion’s share (বড় মাপের অংশ): He took the lion’s share of the profit.
Part and parcel (অবিচ্ছেদ্য অংশ): Education is part and parcel to build a civilized nation.
Red tape (official formalities, অফিসের কাজ)— You would not believe the red tape involved in getting the required permits.
Run a risk (ঝুকি নেয়া) — He ran a risk to save his life.