Biochemical : প্রাণরসায়নিক;
Related Words
bio chemical  biochemical  See Words Also In
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Appropriate Prepositions
Affection for(স্নেহ): She has a great affection for the child.
By heart (মুখস্থ): Kamal learnt to poem by heart.
Call in(ডাকিয়া আনা): They called in a doctor.
Fit for (যোগ্য): Sabina is not yet fit for marriage.
Relation with (সম্পর্ক): I have no relation with the culprit.
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Idioms
At a snail's pace (very slowly – খুব ধীর গতিতে) The economy of Bangladesh is growing at a snail’s pace.
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.
Bird’s eye view - (ভাসা ভাসা দৃশ্য, হালকাভাবে দর্শন): We took a bird’s eye view of the scenery.
In cold blood (ঠান্ডা মাথায়): They committed this murder in cold blood.
To the backbone (হাড়ে হাড়ে): I know this boy to the backbone.