Critical angle : সংকট-কোণ;
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Appropriate Prepositions
Abide in(বাস করা): I abide in Dhaka with my family.
Abstain from(বিরত থাকা): I am trying to abstain from sweets for my new diet.
Comply with(মেনে নেওয়া): The clerks must comply with the orders of their officer.
Sad at (দুঃখিত): All his colleagues were very sad at his transfer from this place.
Worry about (কোনো কিছু বা কাউকে নিয়ে উদ্বিগ্ন হওয়া): Please, don’t worry about me. I will be alright.
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Idioms
Bring to book (reproach-Start- ভর্ৎসনা করা) The father brought his son to book for his failure in the exam.
Hush money (ঘুষ): He offered a hush money to disclose the file.
Pack up a quarrel (ঝগড়া মিটানো)— He packed up their quarrel.
Slip of the tongue (বলায় সামান্য ভুল): This is a slip of the tongue; don’t pay much stress on it.
With the sweat of one’s brow (মাথার ঘাম পায়ে ফেলে) — He earns his livelihood with the sweat of his brow.