Catalysts : অনুঘটক;
Related Words
catalectic  catalysts  See Words Also In
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Appropriate Prepositions
Associate with, in(জড়িত হওয়া): This man was associated with crime.
Careful of (সতর্ক): He is very careful of his fault.
Decide upon (সিদ্ধান্ত করা): We have not yet decided whether we are going to picnic.
Dwell in (বাস করা): He dwells in a tall apartment.
Look at (তাকানো): Students look at the blackboard.
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Idioms
After all - (সব কথার পরেও): I rang and told her I couldn't come after all.
All at once - (হঠাৎ): I feel terribly sleepy all at once.
Make both ends meet (আয় ব্যয় মেলানো): I cannot make both ends meet with my small income.
Take to one's heels (to run away, পালানো)- They took to their heels when they saw the policeman approaching.
White color job – (উচ্চ শ্রেনীর চাকরি, যেখানে শারীরিক কাজ নেই বললেই চলে- a job without manual labour) - He wants a white color job.