to have a surgical operation
অস্ত্রোপচার করানো
"He had to go under the knife to fix his knee injury."
"তার হাঁটুর আঘাত সারাতে তাকে অস্ত্রোপচার করতে হয়েছিল।"
in an uncertain or unstable situation
to be very busy with work or responsibilities
an exceptionally smart system created by humans
a method of hacking that tries all possible combinations of...
to make others happy with your positivity
a strong and determined person