to deal with a lot of information or material
অনেক বিষয়বস্তু বা তথ্য নিয়ে কাজ করা
"The lecture covered a lot of ground in just one hour."
"এক ঘণ্টায় লেকচারটি অনেক বিষয় কভার করেছে।"
a person who works too much and finds it hard to stop
A startup valued at over one billion dollars.
to make a very big or stupid mistake
to turn around and go back the way you came
very quickly; almost immediately
enjoying yourself greatly