Parking the bus in soccer means using all the 10 players to defend and not attacking.
by attacking its enemy
"Mamoru" means "to protect" or "to defend."
The word defensive means to protect or defend. It is the opposite of the word offensive.
if a person is attacking it will fight with its claws and its mouth
i dont know xx
defeat
Depending on context "defend" can mean protect, fortify, support, justify, explain, endorse.
By biting the attacking thing's head off
Protect, preserve, or defend can all mean that.
it bites the thing that is attacking it or 'runs' away to a place where it can hide
I would assume it would be being in war where the enemy is constantly attacking, and you just defend your position, rather than attacking them.