Mainspring : মুখ্য উদ্দেশ্য; ঘড়ির প্রধান চালক-স্প্রিং;
Related Words
mainspring  misfiring  See Words Also In
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Appropriate Prepositions
Angry with(কারো সাথে ক্রুদ্ধ হওয়া): The teacher was very angry with the students.
Convict of(দোষী সাব্যস্ত হওয়া): The accused person was convicted of the murder.
Count for(গণ্য বা বিবেচিত হওয়া): There can be no lasting peace without true democracy in which the people play a part and count for something.
Repent on (নির্ভরশীল): He is repent on his parents.
Shout at (চিৎকার করে ডাকা): Do not shout at your parents.
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Idioms
Black sheep - (কুলাঙ্গার): Stay away from the Black sheep.
Bad names (গালমন্দ—n) He called the man bad names.
Maiden speech (প্রথম বক্তৃতা): His maiden speech fell flat on the audience.
Put up with (সহ্য করা - tolerate): I could not put up with his behavior.
To the brim (কানায় কানায়) - The river was full to the brim.