Very quickly, almost instantaneously.
খুব দ্রুত, প্রায় তৎক্ষণাৎ।
"The discovery of the new planet happened in the blink of an eye."
"নতুন গ্রহের আবিষ্কারটি এক ঝলকেই ঘটে গেছে।"
to admit your mistake and apologize
to improve one’s effort or performance
Something that is very expensive.
a gentle outward appearance hiding strong control
to take control or responsibility
Things are usually worst just before they improve.