Ultraviolet rays : অতিবেগুনী রশ্মি;
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Appropriate Prepositions
Abound with(ছেয়ে থাকা): They live in a region that abounds with oil.
Bridge over (সেতু): The only entrance to Allahabad in that direction was by a bridge over the Jumna.
Decide upon (সিদ্ধান্ত করা): We have not yet decided whether we are going to picnic.
Hit upon (পরিকল্পনা নেয়া): Rahim hit upon a new plan.
Play on (বাজানো): They play on the piano.
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Idioms
Bird’s eye view - (ভাসা ভাসা দৃশ্য, হালকাভাবে দর্শন): We took a bird’s eye view of the scenery.
To the brim (কানায় কানায়) - The river was full to the brim.
Take to heart (মর্মাহত হওয়া)- He really took it to heart when I asked him to reconsider.
Take to one's heels (to run away, পালানো)- They took to their heels when they saw the policeman approaching.
Up to (পর্যন্ত) - I have done the exercises up to page 40.