Dropper : তরল পদার্থ তেলে ফোঁটা ফোটা করে ফেলার নলবিশেষ;
Related Words
draper  draperies  drapery  driver  dropper  See Words Also In
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Appropriate Prepositions
Aim at(আঘাত করার জন্য লক্ষ্য স্থির করা): The hunter aimed at the tiger.
Cope with(সামলানো বা পেরে উঠা): They cannot cope with the situation.
Guess at (অনুমান করা): It is difficult to guess at the age of women.
Indulge in (আসক্ত): You should not indulge in social media.
Play at (খেলা): I do not play at cards.
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Idioms
At one’s elbow (near at hand — হাতের কাছে – adv.) His private secretary is always at his elbow.
Crocodile tears (মায়াকান্না): He shed crocodile tears at our misery.
In a fix (মুশকিলে পতিত হওয়া): The man is in a fix with his new hairstyle.
Run high (বেড়ে যাওয়া) —The price of everything has run high.
Show good manner (ভালো আচরণ প্রদর্শন ): You should show good manner in the company of young ladies.