Throw down and Work at

Throw down verb - To cause to fall intentionally or unintentionally.

Work at and throw down are semantically related. In some cases you can use "Work at" instead a verb "Throw down".

Work at verb - To exert effort in order to do, make, or perform something.

Throw down and work at are semantically related. Sometimes you can use "Throw down" instead a verb "Work at".